Al Gore was appointed to the board of Apple prior to the Iraq war. Here is the Slashdot thread from when he joined, there wasn't much controversial about him at the time other than 'huh, he invented the internet':
http://apple-beta.slashdot.org/story/03/03/19/2246212/al-gor...
He wasn't in congress during the Iraq war vote.
There is a very wide bridge between having a personal opinion as a private citizen in agreeing with the war (as Gore did) and being part of a group of people who planned, orchestrated, operated & implemented two unjust and likely illegal wars.
fwiw, I don't like many of them and don't understand the whole red/blue R/D thing you guys have going on - they all seem very similar from where i'm sitting.