I support the war in Iraq. They cannot pull out now and leave Iraq without authority and a stable government. I do not blame the Bush administration for starting the war either. They had come to the conclusion, although sketchy, that there were wmd's in Iraq. They also invaded to remove Hussein from his reign. America had reason to believe that they had these weapons because of previous instances in the Persian Gulf War and from sources (questionable to say the least) claiming they had wmd's.
After the end of the 1st Persian Gulf War, America made the decision to allow Hussein to remain in power. This was a questionable decision at the time and looking back, this war could have been avoided if we just dethrowned Hussein. Later after this war, some of the troops that fought the war had illnesses that introduced the possibility of chemical poisoning deployed by Iraq. These illnesses added to the suspicion that we had when deliberating whether or not we entered the war.