Pressley says Ocasio-Cortez's win is a bellwether for Dems


MSNBC’s Ayman Mohyeldin interviews Ayanna Pressley, who is running for Congress from Massachusetts’ 7th district against long-time incumbent Rep. Mike Capuano. Pressley is trying to pull off a stunning victory similar to Alexandria Ocasio-Cortez, who defeated Rep. Joe Crowley in New York’s primary.