Would Labour have won 400+ seats in 2005 if Iraq went well

[Filuwaúrdjan]

No, as the Blair government's domestic policy agenda was already strikingly unpopular with those who did not benefit from it directly by 2005 and as the electoral backlash to Iraq (which was felt more in terms of votes than seats) was not linked to how the occupation was going, but to the fact of the invasion itself.