GOP Presidential front-runner Donald Trump warns Republican leaders not to try to turn the party convention against him.

FOX's Steve Taylor reports from Washington:

Donald Trump says Republican leaders who might want to deny him the presidential nomination will have to deal with unhappy delegates at the party convention in July:

(Trump) "A lot of the delegates that you're hearing about wanna come with us. They wanna come with us. I think we're gonna get a lot of delegates."

Trump says it would be "spiteful" for party leaders to back a third-party candidate, and it could mean Democrats win the election.

In Washington, Steve Taylor, FOX News.