Why Colorado matters: Republicans here haven't polled their members, so the state's 34 elected delegates will essentially be free agents.
In the first Republican debate last August, Donald Trump would not promise to support his party's eventual nominee. In September he signed a pledge to do so. Tuesday night, he reversed himself again.
The charge and a new video tape come after Lewandowski allegedly grabbed a reporter following a Trump campaign rally earlier this month.
Donald Trump has a base that skews heavily toward early deciders. His opponents end up fighting over who's left.
- Mark Holmes warned Trump voters not to call in an ad he placed last week for the two-bedroom apartment that's part of his home in Grand Junction.Read more
With the latest round of voting, we can see a trajectory for the candidates to reach their goals.
- On his seventh try, Sen. Cory Gardner finally said he would support the Republican nominee.Read more
One longtime Colorado political pollster says Sanders' support from young adults washed out any edge Clinton may have had with Latinos.
The returns show the Rubios adjusted gross income was $335,561 in 2014, the most recent year he made available. He paid almost $65,000 in income taxes, a 19.3 percent rate.
"I will absolutely give my return, but I'm being audited now for two or three years, so I can't do it until the audit is finished, obviously," Donald Trump said this week.