Ousted Bush foe mulls political comeback Sun Jul 2, 2006 10:41 AM ET By Thomas Ferraro WASHINGTON (Reuters) - The U.S. Senate's No. 1 Democrat until his ouster by voters two years ago, Tom Daschle is weighing a campaign comeback he hopes might propel him into the White House in 2008. The first Senate leader in half a century to be voted out of office, the South Dakotan hopes to turn the outspoken opposition to President George W. Bush that was his downfall in his home state into a plus with voters nationwide. "I'm ready for another challenge," Daschle, 58,...