Don't worry about impeachment," Gravel said in a reassuring tone, adding that he has held discussions with House Judiciary Chair John Conyers (D-MI). "That will come, in due course."

Gravel plan could land Bush "behind bars"

Gravel criticized the President as a "lousy and immoral" commander in chief, but also levied criticism at Democrats for only passing a non-binding resolution to end the war. Nor does the former senator believe simply cutting off funds would work. "I filibustered to end funding in the Vietnam War, but it was not successful," he recalled.

Instead, Gravel revealed a novel plan to bring about an end to the Iraq War, impeachment, or possibly both—and perhaps even land the President "behind bars."

"I have drafted a law that says we must get troops out of Iraq in 60 days," he said. "Leave all the equipment behind…The President must certify that he took troops out. If he violates this law he should go to jail for five years with no parole, and pay a $1 million fine. It says so right in the law."

He believes he could muster enough support in the House to pass the bill. If the Senate filibusters, he would urge Reid to call for a cloture vote daily. "The media will feed on this like maggots," said Gravel, who predicts the measure would pass and that a veto could ultimately be overridden. If the President and Vice President then refuse to enact the law, he concluded, "once you have them breaking the law, now you impeach."