How Tuesday's Primaries Fit Into National Picture

Tuesday's election brought some surprises — two high-ranking legislators on Beacon Hill lost their primaries, and Ayanna Pressley unseated incumbent Democrat Michael Capuano.

To talk about hose these upsets fit into the national picture, and to discuss what we can expect in those as well as the Senate and governor's races, Jeff Berry, a political scientist at Tufts University, joined Morning Edition.