Skip to content

Colorado legal landscape strongly favors municipal election protection ordinances

Tier 1 — Strong Viability
3Target Cities
Home RuleHome Rule

Colorado offers exceptionally fertile ground for municipal election protection ordinances. The state's 2021 repeal of firearms preemption, existing "Vote Without Fear Act" banning guns at polling places, and robust home rule constitutional framework create a legal environment where cities can pass protective ordinances with minimal litigation risk. Boulder emerges as the optimal launch city, with Denver and the newly progressive Aurora as strong secondary targets.

The core legal insight: Unlike most states, Colorado no longer preempts local firearms regulation, making Supremacy Clause arguments against state law largely unnecessary. Home rule municipalities possess broad authority over "local and municipal matters" under Article XX of the Colorado Constitution, and the state's existing sanctuary-style laws protecting immigrants from federal overreach provide favorable precedent for ordinances limiting local cooperation with armed federal personnel at polling places.


Article XX of the Colorado Constitution grants home rule municipalities extraordinary autonomy. The constitutional text explicitly states that home rule charter ordinances "shall supersede within the territorial limits and other jurisdiction of said city or town any law of the state in conflict therewith" on local and municipal matters. Currently 103 municipalities have adopted home rule charters, representing approximately 93% of Colorado's municipal population.

The critical distinction between home rule and statutory cities shapes any municipal ordinance strategy:

Feature Home Rule Municipalities Statutory Cities
Authority Source Colorado Constitution Article XX State statutes (Title 31 C.R.S.)
Legislative Power Broad autonomous authority over local matters Only powers expressly granted by state
State Law Relationship May supersede conflicting state law on local matters Must comply with state statutory framework

Colorado's 2021 firearms preemption repeal transforms the legal landscape. Senate Bill 21-256 amended C.R.S. § 29-11.7-103 to permit local governments to "enact an ordinance, regulation, or other law governing or prohibiting the sale, purchase, transfer, or possession of a firearm" that would otherwise be legal under state or federal law. The legislative declaration explicitly recognizes that local officials are "uniquely equipped to make determinations as to regulations necessary in their local jurisdictions." Colorado became the first state to broadly repeal firearms preemption, enabling cities like Boulder and Denver to enact local gun ordinances.

The state has already addressed polling place firearms directly. The 2022 "Vote Without Fear Act" (HB22-1086) and 2024 SB24-131 now prohibit both open and concealed carry within polling locations, central count facilities, and within 100 feet of ballot drop boxes. Penalties include up to $1,000 fines and 364 days imprisonment. This means state law already provides baseline protections that municipalities can supplement—but cannot weaken—through local ordinances.

Preemption analysis reveals favorable terrain

Colorado courts apply a three-category framework established in City of Longmont v. Colorado Oil & Gas Association (2016) for analyzing home rule authority:

  • Purely local concern: Home rule ordinances supersede state law
  • Mixed state and local concern: Both may coexist unless "operational conflict" exists
  • Purely statewide concern: State law preempts municipal action

The courts apply a four-factor test: need for statewide uniformity, extraterritorial impact, traditional regulatory authority, and constitutional commitment. For election protection ordinances, the analysis is nuanced—election administration is clearly a state concern, but local police powers and municipal resource allocation are traditionally local matters.

Critical precedent from December 2025: The Colorado Supreme Court's Camp v. City of Westminster decision held that home rule cities cannot impose criminal penalties exceeding state law for identical conduct. This signals courts may take a narrower view of home rule authority on criminal matters, meaning any municipal ordinance should focus on resource allocation and police directives rather than creating new criminal penalties.

Sanctuary law precedent supports the approach

Colorado has enacted protective laws limiting local-federal enforcement cooperation that provide favorable precedent. HB19-1124 (2019) prohibits law enforcement from arresting or detaining individuals solely based on immigration status and restricts information sharing with federal immigration authorities. Notably, Colorado has no "anti-sanctuary" laws—cities can enact stronger protections than state law requires.

The Trump administration has designated 39 Colorado counties and 14 cities as "sanctuary jurisdictions," and ongoing litigation between DOJ and Colorado over these policies creates a dynamic legal environment. However, the state's existing framework demonstrates political and legal acceptance of local restrictions on federal cooperation.

18 U.S.C. § 592 and Supremacy Clause considerations

The federal statute prohibiting armed troops at polling places applies only to federal actors and does not create an affirmative duty for states or localities. However, a municipal ordinance could argue alignment with the federal policy interest in preventing armed intimidation at polls. Post-2021, the Supremacy Clause argument is largely unnecessary since Colorado law already permits local firearms regulation. The stronger legal pathway runs through home rule police powers and municipal resource allocation authority rather than federal preemption arguments.


Section 2: Key Colorado statutes provide the building blocks

Voter intimidation provisions anchor the framework

C.R.S. § 1-13-713 makes it unlawful to "impede, prevent, or otherwise interfere with the free exercise of the elective franchise" or compel any voter to give or refrain from giving their vote. Penalties include up to $1,000 fines and one year imprisonment. Related statutes protect election officials (§ 1-13-701), prohibit interference with voters while voting (§ 1-13-711), and ban electioneering within 100 feet of polling locations (§ 1-13-714).

C.R.S. § 1-13-724 (created by the Vote Without Fear Act) specifically prohibits openly carrying firearms at polling locations, drop boxes, and ballot counting facilities. The 2024 expansion to concealed carry means Colorado now joins 13 states plus D.C. with comprehensive polling place firearms protections.

Local control statutes establish municipal authority

C.R.S. § 31-15-401 grants municipalities general police powers including authority to "regulate the police of the municipality" and "pass and enforce all necessary police ordinances." C.R.S. § 31-15-103 permits municipalities to "make and publish ordinances not inconsistent with the laws of this state" for safety, health, and public welfare.

For home rule cities, these statutory powers are supplemented by the broader constitutional grant under Article XX, which courts have interpreted as giving home rule cities "every power possessed by the General Assembly as to local and municipal matters."

Identified statutory gaps

No explicit state statute authorizes municipalities to create "election protection zones" beyond existing electioneering and firearms restrictions. Immigration-focused police cooperation laws do not extend to other federal enforcement contexts. However, home rule authority and general police powers likely cover local ordinances directing municipal police not to assist armed federal personnel near polling places, provided they don't conflict with state election administration.


Section 3: Boulder leads the optimal target city ranking

#1 Boulder offers the ideal launch environment

Boulder's combination of existing sanctuary ordinance (2017), police oversight ordinance with civilian panel (2023), and consistently progressive 9-member city council makes it the strongest candidate. The council-manager government structure provides professional stability, and the city's tradition of civic engagement ensures active community support. Boulder passed its sanctuary ordinance as an emergency measure in January 2017, demonstrating willingness to act quickly on civil liberties protections.

The city's recent progressive achievements include raising the minimum wage unanimously, establishing crisis intervention response teams, implementing ranked-choice voting for mayoral elections, and creating an Office of Independent Monitor for police complaints. This track record shows both political will and operational capacity for election protection measures.

Governing body: Boulder City Council (9 members)

#2 Denver provides maximum impact potential

As Colorado's largest city with 715,522 residents and the oldest home rule charter (1859), Denver offers the greatest visibility for any ordinance campaign. The city has an existing immigration ordinance (Chapter 12-5) prohibiting city employees from cooperating with federal immigration enforcement, plus an immigrant legal defense fund established by Executive Order 142.

The Denver City Council has 13 members (11 districts plus 2 at-large) with overwhelmingly Democratic alignment since 1963. Active progressive council members include Serena Gonzales-Gutierrez, Sarah Parady, and Shontel Lewis (endorsed by DSA and Working Families Party).

Key consideration: Denver's strong-mayor system means centrist Mayor Mike Johnston controls the budget and can veto ordinances. Success requires either council supermajority or mayoral buy-in.

Governing body: Denver City Council (13 members)

#3 Aurora's progressive flip creates optimal timing

Aurora's November 2025 elections flipped the council from a 7-3 conservative majority to a 6-4 progressive majority—creating a window of opportunity. Critically, a sanctuary ordinance and immigrant defense fund were previously introduced but defeated 5-6 in 2020-21; these measures now likely have the votes to pass.

The new progressive councilmembers explicitly plan to establish independent civilian police oversight. Aurora's large diverse immigrant community (it's Colorado's third-largest city at 386,261 residents) provides strong grassroots support.

Key consideration: Conservative Mayor Mike Coffman remains through 2027 and could veto. Advocates would need veto-proof majority or compromise language.

Governing body: Aurora City Council (10 members—Mayor at-large plus council members)

Cities to deprioritize

Colorado Springs maintains conservative orientation despite its libertarian heritage—the libertarian streak manifests as business conservatism rather than civil liberties progressivism. El Paso County actively positions as "anti-sanctuary."

Pueblo experienced a conservative shift in 2024 elections across city council, county commission, and school boards. A Second Amendment sanctuary resolution was introduced but defeated; an anti-abortion "sanctuary city for the unborn" ordinance was tabled 4-3.

Greeley retains Republican-majority council (5-2) despite growing Latino population (41.5%). Located in conservative Weld County with limited progressive infrastructure.


Section 4: A ready-made coalition infrastructure exists

Colorado Common Cause leads existing election protection work

Colorado Common Cause operates Just Vote! Colorado, the state's primary election protection program, deploying 350 volunteers to 200 voting locations in 2024 with bilingual hotlines (866-687-8683 English; 888-839-8682 Spanish). The organization has direct experience passing municipal ordinances including Boulder's Citizens United resolution (2011) and Denver's Ethics Code (2001).

Executive Director Aly Belknap led the 45-organization coalition that passed the Colorado Voting Rights Act (COVRA) in 2025. Common Cause recently filed a motion with ACLU to intervene in United States v. Griswold to protect Colorado voter data from DOJ demands.

Contact: www.commoncause.org/colorado

The ACLU's voting work is led by Campaign Strategist Jennifer Samano and Senior Policy Strategist Anaya Robinson. The organization recently sent letters to 12 Colorado municipalities demanding they end unconstitutional practices barring people with felony convictions from running for office—demonstrating active municipal-level engagement.

Current campaigns include challenging Colorado Springs' unusual election timing, intervening in voter data privacy litigation, and the "We Are the Vote" campaign reaching almost 500,000 voters. The ACLU worked on 75 bills with 128 partners in the 2025 session.

Contact: voting@aclu-co.org | www.aclu-co.org

League of Women Voters Colorado anchors nonpartisan credibility

The League operates 20 local chapters across Colorado with a 40+ member Legislative Action Committee and dedicated staff lobbyist. Executive Director Beth Hendrix leads the organization. The League is a plaintiff (with NAACP Colorado and Mi Familia Vota) in federal litigation against United States Election Integrity Plan for voter intimidation.

Their nonpartisan status adds essential credibility to any municipal campaign, and their 105-year history includes extensive local-level advocacy.

Contact: www.lwvcolorado.org

Immigrant rights organizations provide grassroots mobilization

Colorado Immigrant Rights Coalition (CIRC) represents 80+ member organizations with headquarters at 2525 W. Alameda Ave., Denver. They operate a 24/7 bilingual ICE Activity Hotline (844-864-8341) and their CIRC Action Fund endorses local candidates.

Mi Familia Vota serves as a Just Vote! steering committee member and plaintiff in voter intimidation litigation. Colorado Director Salvador Hernandez leads their Latino voter mobilization work.

Contact: (303) 922-3344 | www.coloradoimmigrant.org

The COVRA coalition provides a ready framework

The 45+ organization coalition that passed the Colorado Voting Rights Act in 2025 represents an established infrastructure for municipal election protection work. Key coalition members include Colorado Common Cause, ACLU of Colorado, League of Women Voters, Colorado Criminal Justice Reform Coalition, NAACP Colorado, Mi Familia Vota, Disability Law Colorado, Native American Rights Fund, and Colorado Black Women for Political Action.

Strategic recommendation: Approach COVRA coalition leadership as the starting point for any municipal ordinance campaign—relationships, communication channels, and coordination mechanisms are already established.


Section 5: Election Security Infrastructure

Colorado's election security infrastructure is among the most advanced in the nation, built on the first statewide risk-limiting audit system, comprehensive firearms prohibitions at polling places following the Vote Without Fear Act and Sensitive Spaces Act, and a cybersecurity apparatus that benefits from proximity to NORAD, NORTHCOM, and U.S. Space Command. The state's proactive use of National Guard cyber teams for election support since 2018 -- activated by executive order each cycle -- provides a model for state-level cybersecurity independence from federal agencies. The 2024-2025 legislative session produced both the Sensitive Spaces Act (expanding firearms prohibitions to all carry at polling locations) and the Colorado Voting Rights Act (creating a private right of action for voter suppression), further strengthening the legal framework.

Secretary of State Jena Griswold (D) remains in office but is term-limited and announced in April 2025 she would not seek re-election, instead pursuing the Democratic nomination for AG. Colorado has used universal mail ballots since 2013 (HB 13-1303), with every active registered voter receiving a mail ballot and in-person voting available at Voter Service and Polling Centers (VSPCs). Colorado's 2024 VEP turnout was 73.1% -- nine points above the national average.

Colorado was the first state to conduct a statewide risk-limiting audit (2017), codified at C.R.S. section 1-7-515 with a current risk limit of 3%. Random seeds are generated by rolling 20 ten-sided dice in public. Bipartisan citizen audit boards compare paper ballots against electronic records.

Key 2024-2025 legislation: SB 24-131 (Sensitive Spaces Act, signed May 31, 2024) expanded the firearms prohibition at polling places from open carry only to all carry (open and concealed). SB 25-001 (Colorado Voting Rights Act, passed May 2025) created a state-level VRA with a private right of action for voter suppression, voter dilution, and election discrimination based on race, color, language minority, gender identity, and sexual orientation. SB 22-153 (Internal Election Security Measures Act) required 24/7 video surveillance, background checks, and felony penalties for unauthorized access to voting equipment.

Colorado's strong home rule tradition under Article XX of the Constitution grants 108 home rule municipalities significant autonomy. The Colorado Municipal League has argued that Article XX, Section 6 "explicitly grants municipalities control and power to regulate all matters pertaining to municipal elections," establishing municipal elections as matters of purely local concern. The 2021 repeal of firearms preemption (SB 21-256) made Colorado the first state in the nation to broadly repeal its firearms preemption statute, with C.R.S. section 29-11.7-103 now permitting local governments to enact firearms ordinances "unless otherwise expressly prohibited pursuant to state law."

Cybersecurity Infrastructure & Capabilities

Colorado's cybersecurity is led by State CISO Jill Fraser within the Governor's Office of Information Technology (OIT). The Colorado Information Analysis Center (CIAC), under DHSEM, operates the Colorado Threat Intelligence System for real-time threat sharing. DHSEM runs a Whole of State cybersecurity program supporting local governments and critical infrastructure.

Election-specific security includes two-factor authentication on the voter registration system (Colorado was the first state to implement this), air-gapped voting machines, two-password access controls, and 24/7 video surveillance of all equipment. The Secretary of State's IT staff is described as "one of the best in the nation."

Governor Polis has activated National Guard cyber teams by executive order for elections since 2018. For the 2024 general election, six cyber-trained Army and Air Guard members were activated. Colorado's Cyber Protection Team 174 and Defensive Cyber Operations Element provide dedicated capability, benefiting from proximity to NORAD, NORTHCOM, and U.S. Space Command.

HAVA funding totals approximately $66 million, including $13.5 million in Election Security Grants. The FY2024 allocation was $1 million with $200,000 state match. Funds have supported risk-limiting audits, voter registration systems, and cybersecurity improvements.

Physical Security & Polling Place Protections

Colorado maintains a 100-foot electioneering-free zone around polling locations and drop boxes (C.R.S. sections 1-13-714, 1-5-105), including a prohibition on campaign apparel inside polling places.

Firearms protections are now comprehensive following two legislative actions. The Vote Without Fear Act (HB 22-1086, C.R.S. section 1-13-724) originally prohibited open carry at polling locations, central count facilities, and within 100 feet of drop boxes. SB 24-131 (Sensitive Spaces Act) expanded this to all carry -- open and concealed -- at polling locations, within 100 feet of drop boxes, and in government buildings. Violations are Class 1 misdemeanors. Denver and Boulder have additional local prohibitions (Denver bans open carry citywide; Boulder bans firearms within 500 feet of polling stations).

Poll watchers must be eligible electors, appointed by a political party chair or candidate, certified to the county clerk, and complete required training (per SB 23-276). They must take an oath before election judges. Recording photos/videos where confidential voter information is visible is prohibited. County clerks may remove abusive or threatening watchers.

Voter intimidation is a Class 1 misdemeanor under C.R.S. section 1-13-713 (fine up to $1,000, up to 364 days imprisonment). Interference with an election official is separately criminalized (C.R.S. section 1-13-701). The AG has equal power with district attorneys to prosecute election offenses (C.R.S. section 1-13-101).

Colorado is confirmed in the 19-state EO 14248 lawsuit. AG Phil Weiser (D, term-limited, running for governor 2026) joined the coalition on April 3, 2025. Weiser has been among the most active AGs nationally -- he prosecuted Mesa County Clerk Tina Peters for illegal tampering with election systems and argued before the Supreme Court to defend Colorado's election integrity.

The new Colorado Voting Rights Act (SB 25-001) provides a private right of action for voter suppression and discrimination at the state level -- making Colorado one of eight states with state-level VRAs.

Colorado's sanctuary state legislation provides direct structural precedent for election protection ordinances: HB 19-1124 (2019) prohibits law enforcement from arresting or detaining individuals solely on civil immigration detainers; SB 21-131 (2021) blocks state employees from sharing information with immigration enforcement without a warrant; HB 23-1100 (2023) bans local government contracts for federal immigrant detention; SB 25-276 (2025) extended these restrictions to all local government employees. Governor Polis has explicitly invoked the anti-commandeering doctrine.

Key contacts:

Role Contact
Secretary of State (303) 894-2200; State.ElectionDivision@coloradosos.gov
AG Election Protection (720) 508-6777; coag.gov/votingadvisory/
CIAC Watch Center (877) 509-2422; WatchCenter@state.co.us
DHSEM (720) 852-6600; dhsem.colorado.gov
## Conclusion: A favorable legal and political window

Colorado's unique combination of repealed firearms preemption, robust home rule authority, existing polling place protections, and established sanctuary law precedent creates an unusually favorable environment for municipal election protection ordinances. The key legal insight is that the path runs through police power and resource allocation rather than criminal penalties or election administration—areas where home rule authority is strongest.

The December 2025 Camp v. Westminster decision signals courts may scrutinize ordinances that create criminal penalties exceeding state law, making careful drafting essential. However, ordinances directing municipal police not to assist armed federal personnel at polling places—framed as resource allocation and local police directives—should survive preemption analysis.

Boulder's existing sanctuary and police oversight ordinances, progressive council, and civic engagement tradition make it the optimal launch city. Denver provides maximum impact potential but requires navigating the strong-mayor system. Aurora's recently flipped progressive council creates a time-sensitive opportunity, with previously drafted measures now likely viable.

The most significant strategic advantage is the pre-existing COVRA coalition infrastructure—45+ organizations with established relationships, coordinated communications, and demonstrated capacity to pass legislation. Any municipal ordinance campaign should engage this coalition rather than building parallel infrastructure.



Printable Flyer

Download the Colorado Election Protection Flyer

A printable 5.5" × 8.5" flyer with Colorado-specific legal analysis, target cities, and coalition partners.

View & Download Flyer

Open the flyer in your browser, then use File → Print or Ctrl+P to print or save as PDF. The flyer is optimized for half-letter (5.5" × 8.5") printing.

City-Specific Flyers

Printable flyers for individual cities with local council details, meeting schedules, and action steps.

Aurora — ~386,000 Boulder — ~105,000 Denver — ~715,000