Former Republican presidential candidate Newt Gingrich on Sunday admitted that GOP hopeful Mitt Romney had “changed” positions during last week’s debate when he claimed that he had not proposed a $5 trillion tax cut.

“I don’t have a $5 trillion tax cut,” Romney had insisted on Wednesday. “I don’t have a tax cut of a scale that you’re talking about.”

But an analysis by the non-partisan Tax Policy Center had concluded earlier that Romney’s plan would reduce revenue by $480 billion in 2015 and $5 trillion over 10 years.