At a Wednesday town hall, the senator said he hypothetically wouldn't agree to the second-highest position in the U.S.
The Miami contest comes ahead of the crucial March 15 Florida primary.
What’s key to winning the White House is how the contest plays out in the battleground states.
It should not be assumed that denying Trump a first-ballot nomination means completely denying him the nomination.
The retired neurosurgeon failed to win any state that voted on Super Tuesday.
Finally, Rubio and Cruz turned their fire on Trump. But isn’t it far too late?
At the debate on Thursday night, Trump said he is the only candidate who has hired people.
The forum is the only debate sanctioned by the Republican National Committee to be aired by a Spanish-language network.
Front-runner Donald Trump seems poised to land his third consecutive win in Nevada on Tuesday night.
Because of a backroom GOP rules deal, a contested convention in Cleveland is in the cards.
The sooner Republicans admit Trump matches their anxieties and aspirations, the sooner they might learn to live with him.
The presidential nominating events will spread to the West and South this weekend.
While Kasich and Bush offered conciliatory rhetoric, Trump doubled down.
The candidates talked about more than their policy positions on Wednesday. Case in point: Marco Rubio likes EDM.
Without a Republican Party, nothing stands between us and a veritable “Star Wars” barroom of presidential wannabes.
The GOP should heed JFK’s dictum, “Those who seek power by riding the back of the tiger end up inside.”
Justice Antonin Scalia's death puts all three branches of government in play.