Rangel's success in getting his name in the news is a sure-fire way to guarantee his reelection - time after time. The substance of the news is immaterial and irrelevant.
The people of New York, as well-meaning and intended as they are, have a history of electing shitbirds into office. More recent examples include Hillary, Elliot Spitzer, and Rangel, but also include Adam Clayton Powell, Rangel's predecessor. Powell was actually expelled by the House because of scandal associated with expense accounts.
Rangel won the most recent election by an astonishing 87% of the vote. Apparently, his various ethics violations and his badmouthing VP Cheney don't hold sway in the NY 15th District. He also demanded a return to the draft, which was nothing more than a political stunt to keep his name afloat.
Rangel's got it figured out. They keep reelecting him.