
Former Speaker of the House Newt Gingrich, left, sings along with his wife Callista, right, as she and the rest of the The Basilica Choir makes their way to the main altar for the start of Solemn Mass of Christmas Day at the Basilica of the National Shrine of the Immaculate Conception, Washington, D.C., Tuesday, December 25, 2012. (Andrew Harnik/The Washington Times)

Former House Speaker Newt Gingrich and his wife Callista wave after speaking to delegates during the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Lynne Sladky)

Former House Speaker Newt Gingrich and his wife Callista wave after speaking to delegates during the Republican National Convention in Tampa, Fla., on Thursday, Aug. 30, 2012. (AP Photo/Lynne Sladky)

Republican presidential candidate and former House Speaker Newt Gingrich is joined May 2, 2012, onstage at the Hilton Arlington in Arlington, Va., by his wife, Callista, and family members as he announces that he is suspending his 2012 presidential campaign. (Rod Lamkey Jr./The Washington Times)

**FILE** Republican presidential candidate and former House Speaker Newt Gingrich sits with his wife, Callista (right), and his daughter, Jackie Gingrich Cushman, in Birmingham, Ala. (Associated Press)

Newt Gingrich, with wife Callista, speaks at the airport of Lake in the Hills, Ill., Thursday. The former House speaker sounds less hawkish on foreign-policy matters. "Instability rather than aggression is the great threat," he recently said of North Korea. (Associated Press)

Republican presidential candidate and former House Speaker Newt Gingrich, accompanied by his wife, Callista, speaks March 8, 2012, at a rally in Jackson, Miss. (Associated Press)

Former House Speaker Newt Gingrich, accompanied by wife Callista, campaigns for the Republican presidential nomination in Dalton, Ga., on Tuesday, Feb. 28, 2012. (AP Photo/Evan Vucci)

Former House Speaker Newt Gingrich and his wife, Callista, depart after a Christmas Mass celebrated by Cardinal Donald Wuerl, archbishop of Washington, at the Basilica of the National Shrine of the Immaculate Conception on Sunday, Dec. 25, 2011, in Washington. (Andrew Harnik/The Washington Times)