Politico and others are talking about the scandals surrounding Charlie Rangel (D-Junket) and Eric Massa (D-Frisky) as a blow to Majority Leader Nancy Pelosi's promise to have the "Cleanest Congress in History". But they're just the opposite. At a time when Democrats are trying to circle wagons and count precious votes, Democratic leadership is being proactive (or, at least, not interfering) in pursuing ethics violations. Particular props appear to be due to Steny Hoyer (D-MD) in pushing Massa's case toward the Ethics Committee.
The discovery of ethics violations is not evidence against the majority party. Of course, it's not evidence in the Democrats' favor either; but at least in Rangel's case, these abuses have been going on for years if not decades, and he's finally being disciplined with his own allies on top. Good for them.