The Oklahoma senator says an ethics bill is so onerous that he won't seek another term if it becomes law. WASHINGTON -- An ethics bill that recently passed the U.S. Senate is so burdensome that Sen. Tom Coburn says he won't run for re-election if it becomes law. Coburn, one of just two senators who voted against the bill, which was touted as cracking down on free gifts and travel for members of Congress, said he is troubled by the legal and political consequences that lawmakers face if the measure succeeds. "If this becomes law, I will guarantee you I...