2 U.S. Reps. named as Obama's Ga. campaign chairmen

<p>Sen. Barack Obama on Monday named Reps. Sanford Bishop and Hank Johnson as the Georgia co-chairmen of his presidential campaign.</p><p>The two Democrats will play a largely ceremonial role for the campaign, helping to rally support and draw contributions.</p><p>Bishop, from Columbus, said Obama is the candidate for change.</p><p>"(He) is the only candidate who will challenge the conventional thinking in Washington and transform our politics," Bishop said in announcing his endorsement of the Illinois Democrat.</p><p>Johnson, from Lithonia, endorsed Obama last month.</p>