Huckabee to appear on Letterman.

Former Arkansas governor Mike Huckabee is scheduled to appear on CBS’s Late Show with David Letterman on Monday, a day before the New Hampshire primary. Earlier this week Huckabee was a guest on Jay Leno’s Tonight Show and tried to insist that he had been “unaware that he would be crossing picket lines.” He was greeted by protestors holding signs reading, “Huckabee is a scab.” Huckabee will not cross picket lines to appear with Letterman, who has reached a deal with the writers guild.