Chances are Blair will soon be out as PM if projections of Labor seats hold true.
Yes, his party and Blair himself knew the risks. The seats falling to the Tories are not nearly as telling as the seats falling to the LibDems. Those seats, imo, can be directly traced to Blair's support for the war. Had he not supported the war it is unlikely Labor would have seen those seats defect to the LD.
It looks to me that the hard left will drag Labour to the left over this, which can only be good for the conservatives.