Just as one President may not, through signing legislation, eliminate the Executive Branch's inherent constitutional powers, Congress may not renounce inherent presidential authority. The Constitution grants the President the inherent power to protect the nation from foreign attack, and Congress may not impede the President's ability to perform his constitutional duty.“In other words, all he has to do is claim that whatever he's doing is necessary to "protect the nation from foreign attack", and it's all OK.
It's time. Call your Representative. Ask them if they're supporting John Conyers' House resolution to investigate Bush. If they're not, ask them who the hell they think they are representing.