Cruz spoke out Tuesday night for the first time since reports surfaced accusing her husband of having extramarital affairs.
The Ohio governor said he is campaigning only to be president of the United States.
The billionaire's wife and three of his adult children will join him onstage Tuesday night.
The family will take questions tonight from CNN's Anderson Cooper and Republican voters seated in the audience.
The Texas senator's tenacity makes him the Colorado favorite.
Eric Garner died in New York City in 2014 after being placed in an apparent chokehold by a police officer.
From abortion to NATO, Trump hit on hot-button issues two days before the Wisconsin primary.
New York has some of the toughest gun laws in the country.
During his interview with Rachel Maddow, Bernie Sanders discussed the state of the presidential race.
Clinton shared conversations she has had with foreign leaders about their concerns for a possible President Donald Trump.
Donald Trump and John Kasich participated in town halls for a second consecutive night.
The three Republicans hinted at no longer pledging to support their party's eventual nominee.
Corey Lewandowski is accused of grabbing reporter Michelle Fields at a news conference.
The Wisconsin governor announced his decision a week before his state's primary.