Newt Gingrich

FILE – In this Nov. 9, 2011 file photo, Republican presidential candidate former House Speaker Newt Gingrich speaks during a Republican Presidential Debate at Oakland University in Auburn Hills, Mich. Rising in national polls, Gingrich found himself on the defensive Wednesday over huge payments he received over the past decade from the housing mortgage giant Freddie Mac. (AP Photo/Paul Sancya, File)