Previewing New Hampshire's Senate primaries

Centrist Chris Pappas faces progressive primary challenger Karishma Manzur while Republicans eye chance to flip seat New Hampshire voters head to the polls Tuesday for primaries that will set up a closely watched Senate contest – a vulnerable open seat Democrats must defend if…

Primary voters in New Hampshire are heading to the polls on Tuesday, where the balance of power in the U.S. Senate may be at stake. CBS News congressional reporter Taurean Small has the details.