After Tuesday's caucus, though there was no offical tally, it seemed to Diggs Brown, Rep. Cory Gardner's top challenger, that he would not make the ballot and dropped out to support him.
Cory Gardner was seen as the clear front-runner with high ID and strong fundraising. Tom Lucero and Dean Madere are still in the race. With Diggs supporters united around Gardner, it is highly possibly Gardner may be the only one on the ballot.
Also Andrew Romanoff beats Michael Bennet 50-40% in the caucus, the Romanoff campaign were hoping on a stronger showing, perhaps getting Bennet under 30% to give him the embarrassment of not making the ballot. The results still show Romanoff is in the race, he will have to do a lot of work to win the primary.