I'd have to disagree with you. I highly doubt Bush thinks that by supporting Isreal, Jesus will come back. I think it's more along the lines of "If I support Isreal, I'll actually have a friend in the middle-east who keeps the Arabs distracted from uniting and kicking my ...."
American politicians usually put political gains before any possible religious ones. Bush's support of Isreal is all about power. Besides, it's not when the Palestinians are oppressed Jesus will return. It's when the Jews are back to their motherland He will be back. This is impossible because many Jews do not want to return, there are many half-Jews, and what about those who convert to Judaism and have no blood ties to the religion?