Trent Nelson | The Salt Lake Tribune callista gingrich at the Republican National Convention in Tampa, Florida, Thursday, August 30, 2012.Trent Nelson | The Salt Lake Tribune callista gingrich at the Republican National Convention in Tampa, Florida, Thursday, August 30, 2012.Trent Nelson | The Salt Lake Tribune callista gingrich, newt gingrich at the Republican National Convention in Tampa, Florida, Thursday, August 30, 2012.