Did he?
http://www.pinnaclecascade.com/
Seems there’s some doubt about that.
If he said it ‘in a statement’, where’s the statement?
“This is no longer about past preferences or differences. It is about what is best for our country and for me that means that Republican should close ranks behind John McCain,” Thompson said in a statement reported by the Associated Press.”
I agree, that's hardly a ringing endorsement. But it isn't a "keep fighting, Huckabee, to stop John McCain" either.