Impeach Bush over Domestic Surveillance?

Bruce Fein was associate deputy attorney general under President Ronald Reagan. He's a well known conservative legal scholar, especially in pro-life circles. He made these remarks yesterday to Nina Totenberg on NPR's All Things Considered:

"I was someone who defended strong presidential powers and we do need a strong presidency. But we don't want a presidency that elevates itself into a kingship even stronger than that of George III...if the president does not renounce this rather preposterous claim of inherent authority to run roughshod over every provision of the constitution under the banner of fighting a war, congress needs to consider an express statute reigning him in or even impeaching him."