Calling it quits: In Romney's words

Romney did indeed pull the trigger in a speech to CPAC a few minutes ago:

"If I fight on in my campaign, all the way to the convention, I would forestall the launch of a national campaign and frankly I would be making it more likely that Senator Clinton or Obama would win. Frankly, in this time of war, I simply cannot let my campaign, be a part of aiding a surrender to terror," he said.

"This is not an easy decision for me. I hate to lose. My family, my friends and our supporters... many of you right here in this room have given a great deal to get me where I have a shot at becoming President. If this were only about me, I'd go on. But I entered this race because I love America, and because I love America, in this time of war, I feel I must now stand aside, for our party and for our country," he said as the crowd exclaimed, "No, no."

"I will continue to stand for conservative principles; I will fight alongside you for all the things we believe in. And one of those things is that we cannot allow the next President of the United States to retreat in the face of evil extremism!"