BATON ROUGE, La. - U.S. Rep. William Jefferson (news, bio, voting record), whose Washington office was raided by the FBI amid a federal bribery investigation, will face a dozen challengers in the November election. The official sign-up period for Louisiana's Nov. 7 congressional election ended Friday. In Louisiana, there are no earlier party primaries; if no candidate gets more than 50 percent of the vote on Election Day, the top two go to a December runoff. Although some are lesser-knowns, a few challengers carry significant name recognition, political ties and fundraising potential that could lead the eight-term Democrat into his...