(CNN) - Former Republican Speaker of the House Newt Gingrich once again called out President Barack Obama Tuesday for refusing to negotiate with congressional Republicans over raising the debt limit.
"The president ought to be getting off his high horse, sitting in a room, bringing in the congressional leadership and acting like he's part of the constitution, he's not above it," Gringrich told CNN's Chris Cuomo on "New Day."
Gingrich, one of the co-hosts of CNN's "Crossfire," said that the American people think that for the president to do anything else is "nuts."
Gingrich was House speaker during the last two government shutdowns, in late 1995 and early 1996.
The president and Senate Democrats have held firm on their refusal to negotiate under under the gun, calling for a "clean" increase to the debt ceiling. Obama reiterated that stance in a speech at FEMA Monday.
"We're not going to negotiate under the threat of a prolonged shutdown until Republicans get 100% of what they want" or under the threat of "economic catastrophe," said the president.
–CNN's Bryan Koenig contributed to this report.