Is Santorum approaching the end of his campaign? Melissa Harris-Perry gathered a panel yesterday that included Nation writer John Nichols to discuss the GOP campaign in a state where more than one million signatures were gathered to force a recall election of Republican Governor Scott Walker. In this clip, Harris-Perry discusses rhetoric while Nichols explains the differences in tactics used by Romney&nsbp;and Santorum and how he thinks they will play out on Tuesday.

—Elizabeth Whitman