You're right, by leaving him in there he gains more Seniority. We could end up with him as the Chairman of one of important committee - like Spector, who's not as bad as Chaffee. Dump him now and power up for the next race.
There has GOT to be consequneces for "Republican" COngressmen who vote with the Dems on issues like foreign policy, national security, border controls, Constiutional rights, etc.
Chaffee is a good place to start.
Look at Specter. Bush II campaigned for him in a primary against a CONSERVATIVE challeneger and now Specter is supporting a move to SUE the administration on a domestic security issue only the DEMOCRATS and the MEDIA are concerned about. Poll after poll indicates the American people support spying on potential terrorists. Yet these RINOS - as always - suck up to the media and the Democrats and ignore public opinion and the best interests of America.
A "friend" who stabs you in the back is WORSE than an avowed enemy.