Pelosi and Ocasio-Cortez expose Democrats' big divide

House Democrats are battling over their beliefs. A substantial policy divide has opened up between moderates, led by Speaker Nancy Pelosi, and progressives--and it has recently grown personal. On the outs with Pelosi, Reps. Alexandria Ocasio-Cortez, Ayanna Pressley, Ilhan Omar and Rashida Tlaib, all freshman women of color, are finding themselves increasingly ostracized. Lisa Desjardins reports.