Watch the awkward immigration exchange between Graham and Santorum

Former Pennsylvania Sen. Rick Santorum and Sen. Lindsey Graham, R-S.C., squared off for a few awkward minutes in the CNN debate Wednesday when Graham said Santorum didn’t leave any kind of legacy in the Senate on immigration policy, which forced Santorum to admit it’s true his plan didn’t go anywhere.

Santorum, who has struggled to garner support for his second presidential bid, kicked off the discussion of immigration by saying workers “know that their wages are being undermined.”