Romney ends presidential campaign

Former Massachusetts Gov. Mitt Romney is ending his bid for the GOP presidential nomination:

The former Massachusetts governor said he was dropping out of the race because he doesn't want to see the Democrats win in November.

"If this were only about me, I would go on. But it's never been only about me. I entered this race because I love America, and because I love America, in this time of war, I feel that I must now stand aside, for our party and for our country," Romney said.

"I will continue to stand for conservative principles," he said, "We cannot allow the next president of the United States to retreat in the face of evil extremism."