Republicans Donald Trump, Ted Cruz, Marco Rubio, John Kasich and Ben Carson meet for the final debate before Super Tuesday.
Rubio trails Trump in his must-win home state.
The forum is the only debate sanctioned by the Republican National Committee to be aired by a Spanish-language network.
Trump trounced Cruz and Rubio in Nevada. But the numbers involved were very small.
Front-runner Donald Trump seems poised to land his third consecutive win in Nevada on Tuesday night.
Why doesn't Rubio speak Spanish more often? He doesn't want to appear too foreign to white Republicans.
The real estate mogul carried veterans and older voters in South Carolina, and virtually tied Ted Cruz for the evangelical vote.
The presidential nominating events will spread to the West and South this weekend.
The candidates talked about more than their policy positions on Wednesday. Case in point: Marco Rubio likes EDM.
Republican candidates called each other liars at a debate that saw little consensus, except on delaying a Supreme Court nomination.
Justice Antonin Scalia's death puts all three branches of government in play.
Former Virginia Governor Jim Gilmore is the only GOP candidate who didn't earn a spot onstage.
The Ohio governor has built a base of support among moderate Republicans and independent voters.
Three current or former governors put in strong showings on Saturday at Rubio's expense.
Unlike other debates, ABC News will not hold an undercard for low-polling candidates.