Jeb Bush

Former Florida GOP Gov. Jeb Bush defended the Common Core education standards Thursday, but offered an olive branch to Republican activists who oppose them and are making them a litmus test for potential 2016 presidential candidates.

Bush's longtime support has put him crosswise with part of the Republican base. He said that he finds the new angst over Common Core "troubling," but that there is room for disagreement among those who more generally support school reform.

A new video ad you can see online (or this Sunday on the Fox News Channel) features Gov. Bobby Jindal of Louisiana and former Florida Gov. Jeb Bush describing what constitutes a "New Republican."