CHARLOTTE, N.C. – There is increased speculation Friday evening about the political future of Republican presidential candidate Newt Gingrich. Sources told NewsChannel 36 Gingrich has canceled all of his appearances in North Carolina next week. Gingrich was scheduled to make multiple appearances throughout the state, including a visit to Lincoln Charter School in Denver next Wednesday. Fourth graders planned to present him with an American history project. “We are disappointed that the Gingrich camp has decided to cancel the entire NC tour,” said Lincoln Charter School Chief Administrator Dave Machado. “We were looking forward to the opportunity to showcase the...