Newt Gingrich's campaign has asked the Tennessee Republican Party....to not seat Knoxville state Sen. Stacey Campfield as a Gingrich delegate at the national convention. Campfield, who served as a state co-chair for Gingrich's campaign, abruptly switched his support to Santorum days before the March 6 "Super Tuesday" election. "Please be advised that Stacey Campfield does not have the consent of the Newt Gingrich for President Campaign to be seated as a delegate at the Republican National Convention," wrote John Fluharty, the campaign's director of delegate access, in a Thursday letter to the state GOP committee. "As a matter of information,...