In a nutshell:
The only compelling argument for endorsing Kerry is to punish Bush for Iraq. But why should Kerry be rewarded? He voted to hand Bush a blank check for war. Though he calls Iraq a “colossal” error, “the wrong war in the wrong place at the wrong time,” he has said he would—even had he known Saddam had no role in 9/11 and no WMD—vote the same way today. This is the Richard Perle position.
Assuredly, a president who plunged us into an unnecessary and ruinous war must be held accountable. And if Bush loses, Iraq will have been his undoing. But a vote for Kerry is more than just a vote to punish Bush. It is a vote to punish America.
Full article here.