Colorado voters are headed for a high-stakes immigration fight this November over whether to rewrite the state constitution so local law enforcement must call federal immigration officials in certain criminal cases.
The proposed amendment, known as Initiative 95, would require police, sheriffs, and prosecutors to notify the U.S. Department of Homeland Security when someone charged with a violent crime, or a person charged with a crime who has a prior felony and an unclear immigration status, cannot be shown to be lawfully present in the country. Supporters argue it is a common-sense way to keep violent and repeat offenders off the streets. Opponents warn it will drive a wedge between immigrant communities and local police, making people less likely to report crimes or cooperate with investigations.
Backers say they collected the signatures needed to get the measure on the ballot, and election officials have now agreed.
As reported by The Colorado Sun, supporters turned in about 190,000 petition signatures, and state election officials determined that was sufficient to qualify Initiative 95 for the November ballot. The Sun also noted the measure would give law enforcement 72 hours after someone is charged to notify Homeland Security and would require officers to make a “reasonable effort” to determine whether a person is lawfully present. If approved, the amendment would override existing state rules that limit how much Colorado agencies can cooperate with federal immigration enforcement.
What the Ballot Language Says
According to the official ballot title set by the Colorado Secretary of State, the amendment would require law enforcement to notify the Department of Homeland Security “when a person is charged with either a violent crime or any crime if the person has a prior felony conviction” and officials cannot determine that the person is lawfully present. The ballot title and submission clause on the Colorado Secretary of State site also note that, because this is a constitutional change, Initiative 95 will need support from 55 percent of voters to pass.
Who's Behind Initiative 95
The campaign is led by Advance Colorado, a conservative nonprofit that has framed the proposal as a response to a broader national enforcement push and a way to let local officers coordinate with federal authorities in cases involving violent or repeat offenders, as reported by Colorado Politics. Supporters say current limits on communication with federal immigration agencies create gaps that keep officers from alerting Homeland Security when they encounter potentially dangerous individuals. Opponents counter that the amendment would erode community trust and undermine the kind of local partnerships that help solve crimes in the first place.
State Law and Recent Clashes
Colorado law currently restricts state and local agencies from sharing certain nonpublic personal identifying information with federal immigration authorities, and the Attorney General's Office has repeatedly cited those statutes as the governing rules in Colorado, according to a July 2025 press release from the office.
The issue erupted into public view last year after a Mesa County deputy resigned following an investigation that found he had alerted federal agents about a University of Utah student's immigration status, in apparent conflict with state policy. That case, described in detail by Colorado Public Radio and in a complaint from the Attorney General's Office, has already triggered lawsuits and cranked up the political tension around how far local officials can and should go in helping federal immigration agents.
Enforcement Data and Who's Being Arrested
Federal arrest records and outside analyses show that ICE arrests in Colorado climbed sharply during the recent enforcement surge, and many of the people detained did not have recent criminal convictions, according to a WyoFile review of ICE data. Local journalists and watchdog groups have seized on those numbers to argue two things at once: that the enforcement sweeps have been broader than federal officials originally suggested, and that the line between public-safety targets and nonviolent immigrants is getting harder to draw. Those statistics now sit at the center of messaging on both sides of the Initiative 95 fight.
Legal Implications
If voters approve Initiative 95, the amendment would be written into the Colorado Constitution and could override existing statutes that limit state and local cooperation with federal immigration enforcement. That would create a direct conflict in state law that almost certainly would end up in court.
Current Colorado statutes bar state employees from disclosing certain nonpublic personal identifying information when the purpose is to assist federal immigration enforcement, a protection reflected in state code. Legal experts say a clash between newly adopted constitutional language and those standing statutes would raise complicated questions about which rules control, how state agencies should respond, and how far federal immigration law can preempt state protections.
What Happens Next
With the Secretary of State's certification in hand, Initiative 95 is locked in for the November ballot and is poised to become a marquee fight of the 2026 campaign season. Supporters are leaning hard on law-and-order arguments, while immigrant-rights advocates and many Democratic leaders are warning that the amendment would chill community policing and make entire neighborhoods less safe.
State lawmakers have already signaled they plan to introduce legislation this session aimed at protecting immigrant communities and clarifying what local governments must do when federal authorities come calling. At the same time, national immigration enforcement actions, including intense operations in Minnesota, continue to keep immigration on the front pages, as reported by AP and state outlets.
If voters sign off on Initiative 95, the new constitutional language, along with the inevitable legal challenges, would reshape how Colorado police departments and sheriff's offices interact with federal immigration authorities for years to come.
