Former President Donald Trump called on Colorado voters to deliver a protest vote at a rally in Aurora, Co. on Friday. FORMER PRESIDENT DONALD TRUMP: There's more enthusiasm today than ever before. But there was great indignation in Colorado by what this ineffective person did.

A bipartisan group of county clerks gathered next to a ballot drop box in Highlands Ranch on Thursday morning to mark the occasion. They shared key election dates and deadlines and — amid still-prevalent election denialism and baseless conspiracy theories — emphasized that Colorado’s paper ballot-based election systems are accurate and secure.

Former President Donald Trump visited Aurora, Colorado, for a campaign rally on Friday where he continued to push misleading narratives about the city's migrant population. "My message today is very simple,

Donald Trump stepped away from battleground states Friday, campaigning in Colorado and driving a message that migrants are causing chaos in smaller American cities and towns, often using false or misleading claims to do so.

Former President Donald Trump campaigned in Aurora, Colo., focusing on immigration and his plan for mass deportation of undocumented migrants. This after he spread falsehoods about migrants and gangs overrunning the city.

Every registered voter in Colorado will receive a ballot through the mail, but you can choose whether to vote by mail or in person. Either way, ballots must be returned by 7 p.m. on Election Day, Nov. 5. If you're mailing your ballot, the Secretary of State recommends doing so by Oct. 28 to ensure it arrives in time.

The Republican presidential nominee has said Venezuelan criminals are taking control of Aurora, a claim the city's mayor has called "exaggerated".

The Colorado Secretary of State also has an online tool, BallotTrax, which voters can use to track their ballots both as they are being mailed out and as they are counted. Election officials across the state can begin counting mail-in ballots starting Oct. 21.

The Republican nominee has long promised to stage the largest deportation operation in US history and has made immigration core to his political persona since the day he launched his first campaign in 2015.

Former President Donald Trump is coming to a Colorado city where crime is down to warn about the danger he says criminal migrants pose to voters