Because he's not going to be the Republican nominee for president, Newt Gingrich wrote an open letter yesterday to the delegates he won in the primaries saying they are free to support Mitt Romney. From the letter:
"I hereby release all delegates bound or pledged to me under any and all state laws or party rules. At the same time, I call upon them and all Americans committed to a safer and more prosperous American future to join Callista and me in strongly supporting the Romney-Ryan ticket."
Meanwhile, presumably for a rainy day, Ron Paul is keeping his and he even just picked some up in Louisiana. “Paul will be awarded 17 of the state’s 46 delegates in the compromise,” Paul campaign chairman Jesse Benton told ABC News. “The rest of the state’s delegates are expected to support Mitt Romney, the party’s presumptive nominee.”