Bad News for McCain

It looks like conservatives are finally going to have a candidate to vote for this fall.

The presidential field just grew by one.

Former US Representative Bob Barr of Georgia announced that he will run as a Libertarian this year. He first must win that party's nomination at its national convention that begins May 22.

A conservative former Republican, Barr could end up hurting presumptive GOP nominee John McCain -- just as some Democrats fear that Ralph Nader's independent candidacy could bleed votes from the Democratic nominee.