Senate GOP candidate slams party By LIZ SIDOTI, Associated Press Writer Published: Tuesday, July 25, 2006 Updated: Tuesday, July 25, 2006 WASHINGTON (AP) - A Republican in a competitive Senate race called his party affiliation "an impediment," said he'd "probably not" want President Bush to campaign for him and the GOP-controlled Congress should "just shut up and get something done." Michael Steele's campaign confirmed Tuesday that the Maryland lieutenant governor was the Senate candidate who made the comments a day earlier on the condition reporters not identify him. However, the campaign said his remarks were only a sampling of the...