A lot of Republicans are still thinking that Bush just had bad intelligence. They are forgeting that the case for war took about 6 months and that the final push was based on the "imminent threat" argument made by both Blair and Bush. At that point citizens had to stand back and let their governments act.
The fact that their governments were lying to them to fulfill another secret agenda calls for the replacemnt of all those who were party to the lie.
If they are not replaced then they will continue lying and taking illegitmate power from the citizens.