NPR: Fox News reports that “senior Gingrich aides” say former House Speaker Newt Gingrich “plans to formally suspend or end his presidential campaign next Tuesday.” CNN writes that “sources close to Newt Gingrich say he will end his bid for the GOP presidential nomination next week.” USA Today‘s On Politics blog notes that “Gingrich told a North Carolina audience today that he’s ‘working out the details of our transition.’ ” MORE