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.
The next big test in stopping the billionaire frontrunner will be New York, the state he calls home.
From abortion to NATO, Trump hit on hot-button issues two days before the Wisconsin primary.
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.
Donald Trump, Ted Cruz and John Kasich participated in a town hall on Tuesday night in Milwaukee.
The Wisconsin governor announced his decision a week before his state's primary.
The Wisconsin primary kicks off April's nominating contests.
Arizona is the biggest prize for both parties Tuesday night.
Residents in three Western states are casting their picks as national security once again is a hot-button issue.
Twin explosions in Brussels will test how the contenders would protect the U.S. as president.
The state was unsuccessful when it first tried to execute Romell Broom in 2009.
Trump needs to win around 55 percent of the remaining delegates to avoid a contested Republican convention in July.
He's in third place and that's unlikely to change.
An ex-model. A former NFL cheerleader. Stay-at-home moms. Even a former president.