Erickson is a loser and
a drag on the conservative movement. He's been attacking all the conservatives candidates for months in order to push Perry. He was actually doing a little victory dance when Palin decided not to run.
Now that Perry's imploded, he's stuck with Romney. It should have been obvious months ago that only Palin could stop Romney - but Erickson couldn't stomach anyone not 100% approved by NRO and Bill Kristol.
But don't worry, if Romney gets nominated EE will turn on a dime. He'll then praise Romney to the sky and hector everyone else to fall in line - just like he did with McCain.
I don't know anyone who respects Erickson or really likes him but there he is at the head of Red State.