Primaries in Wisconsin and Minnesota pit progressives against moderates

Voters are heading to the polls in another round of competitive primary races in the build-up to November’s midterm elections. In Wisconsin and Minnesota, Democrats will once again decide between moderate and progressive candidates. Meanwhile, in South Carolina, Republicans will…

NPR's Leila Fadel asks Jessica Taylor of the Cook Political Report about battles between moderate and progressive candidates in Tuesday's Democratic primaries in Wisconsin and Minnesota.