The Secretary of State’s office announced Robinson did not collect enough signatures to qualify onto the ballot.
While nearly 40 percent of respondents were still undecided, Colorado Treasurer Walker Stapleton and Colorado Attorney General Cynthia Coffman led GOP candidates in support.
From "could do a lot more" to "exceeded my expectations" to "some sketchy moments" -- here's what they're saying about President Donald Trump.
Poll: Unaffiliated voters don’t like Trump, and that could be trouble for Colorado Republicans in 2018
David Flaherty of the Republican-leaning polling firm Magellan Strategies sees trouble brewing for Republicans in 2018 in the firm's first statewide poll of likely voters.
The bill would let school districts decide whether employees who are concealed-carry permit holders could undergo training to carry on campus.
"Today’s introduction of the Bridge Act is only a first step in the long process of permanently reforming and strengthening our immigration laws."
In addition to the headliners, Colorado has some high-stakes happenings at the state level, with Democrats in position to take over the Senate.
Colorado ballot returns show Republicans still hold the advantage in early voting on Election Day morning
Going into the home stretch, Colorado Republicans hold an 18,000-ballot advantage in early voting.
Colorado election results over time: Denver has picked a Republican for president twice since Kennedy
Denverite looks at how Denver County has remained politically consistent through the years while other counties have shifted on their choice for president.
The focus was less on Hillary Clinton's economic plans for the country and more on not starting World War III.
Republican Sen. Cory Gardner of Colorado is urging voters to support Donald Trump.
Governor Mike Pence of Indiana is visiting Denver today to press the case for voting for Donald Trump for president.
The country's most famous fictional Democrat inspired 18-year-old Benyam Capel to get involved in Republican Party politics.
In a sharp break from its plans before Trump emerged as the nominee, the Koch network won't play an active role in the presidential contest, said Mark Holden.
Trump is also doing a Reddit AMA at 4:30 p.m. on Wednesday -- maybe you'll see your house in his proof photo!
Darryl Glenn at Republican National Convention: We’re more racially divided today than before Obama ran
Here's what Darryl Glenn, the Colorado Republican candidate for U.S. Senate, had to say at the Republican National Convention tonight.
Darryl Glenn, the Republican candidate for U.S. Senate in Colorado, has a big-time speaking slot at the Republican National Convention today.