They’re reading the electoral math and can see that it’s virtually impossible for Santorum to win. There is still a small possibility for a brokered convention, which Newt is banking on).
So, they are hoping that with the endorsements, Romney will pull ahead. Which would then allow for him to begin campaigning against Obama.
Something that should have been started a few months ago.
With the assumption of a brokered convention, there’s still a ridiculous assumption that Gingrich will be the nominee! That’s also assuming Romney doesn’t place in states that ate left. He’ll win D.C., Maryland, Connecticut, Delaware, New York, Rhode Island, North Carolina, West Virginia and Oregon. It’s probably over by the time the California results come out. Especially since he’ll pull some delegates away during the races he won’t win. I hope I’m wrong, but I doubt it.