Republican candidate rules out third-party bid again

Republican presidential candidate Donald Trump recommitted to his promise that he would not mount an independent bid in the November 2016 election if he does not secure his party's nomination next year.

Asked during Tuesday night's CNN debate in Las Vegas if he was ready to reassure Republicans that he would not break his pledge to the Republican National Committee and launch a third-party candidacy, he said, "I really am. I'll be honest, I really am."

Trump has warned that he could renege on the promise if he felt the party's leadership had treated him unfairly. He raised eyebrows last week when he tweeted that 68 percent of his supporters would back him if he ran as an independent, according to a recent opinion poll. Party strategists fear that such a maneuver would split the Republican vote in November and effectively guarantee that the Democratic nominee wins.

But the real estate mogul doubled down on his promise on CNN following the debate, plugging his status as the longtime front runner.

"Number one, I'm in first place. Not by a little bit, by a lot," he said, calling himself the party's fair-haired boy.

"When they asked it, I did not hesitate. I decided to just say yes, I'm a Republican. And I'm going to be a Republican; I'm not going to be doing a third-party" run.

Last week, the Washington Post reported that party leaders met to game out scenarios for a brokered convention in Cleveland in July in the event that no candidate wins the required number of delegates to clinch the nomination. Trump told the newspaper he was concerned that he would be at a disadvantage if a contested convention materialized.