Obama picks up a trifecta of GOP endorsements in the aftermath of getting the Colin Powell seal of approval:
Former White House Press Secretary Scott McClellan
Former governor of Massachusetts William Weld
Former governor of Minnesota Arne Carlson
The only big name Democrat to endorse McCain so far is Joe Lieberman. What makes him more significant than any of the Republicans who crossed over for Obama is that he is still a serving U.S. senator, currently a member of the Democratic caucus. If McCain wins the White House, there is speculation that McCain would ask Lieberman to serve in his cabinet – possibly as Secretary of Defense or State – which would open up his seat in the Senate, which would be filled at the discretion of the Republican governor of Connecticut Jodi Rell.