Callista Gingrich glowing after doc screening

SPOTTED: Former House Speaker Newt Gingrich (R-Ga.) and his wife, Callista, stopping to pose for pics with fans after a screening of their new George Washington documentary, “The First American,” near the Republican National Convention grounds in Cleveland on Wednesday.

{mosads}As Callista Gingrich was taking her place in front of a movie theater’s wall lamp to smile for the camera, the photog noticed the platinum blonde was producing a heavenly glow.

“It looks like a halo over your head with the light,” the shutterbug pointed out.

“I don’t need any more exposure!” Gingrich, 50, replied with a laugh, gently patting her oft-talked-about golden bob.