Joe Biden threatens to call for impeachment for President Bush and Vice President Cheney if they bomb Iran without Congressional approval. Surely this will be the strategy that gets his poll numbers all the way up to 5%. Brilliant. He has to know the President would never do this, and that he will never have to follow through with this threat. I guess I was wrong in assuming he was above pandering to the lefty netroots. If you want to be different from the rest of the Democratic field, why follow their playbook? Nothing will make any difference for Biden right now, but I’m disappointed that he has to resort to playing the scary Bush card. He has more to offer as a candidate than a promise of change from Dubya’s policies.