That's the essential difference between Democrats and Republicans. A 'crat facing the same charges would have fought them tooth and nail, using "the meaning of 'is'"-type arguments. Cunningham, at root an honorable man, stood up and confessed his failings with a choked voice and a tear in his eye.
Democrats subscribe to the "any means necessary" philosophy because they don't generally believe in objective standards of ethics or morality. Corruption on a daily basis is simply part of the way they do business and they cover for each other like 'made' Mafiosi.
It is the Bush Administration's Justice Department that is prosecuting Congressman Cunningham. It is the Bush administratration's appointed Special Prosecutor who is prosecuting Scotter Libby and perhaps Carl Rove. It is the Bush administration's Justice Department that has assigned 45 investigators to go after Republican lobbyists Michael Scanlon and Jack Abramoff plus possibly Republican Congressmen Ney and DeLay.
It is the Bush administration's appointed head of the Securities Exchange Commission who is investigating Senator Bill Frist.
I am certain that if Congressional Democrats are currently involved in federal criminal acts, the Bush Administration's Justice Department will prosecute them with equal or even superior vigor. The media have no say over who is indicted, they can only cover the indictments and investigations.