This Week in Politics: A guide to the New York state Senate primaries

Early voting starts Saturday, August 13th for New York's special August 23rd primary, where Democrats and Republicans will pick their nominees for Congress and for state Senate. The congressional races are capturing most of the headlines in New York City, but there are plenty of competitive state Senate races too - especially among Democrats. WNYC's Albany reporter Jon Campbell joins Weekend Edition host David Furst for a guide to some of the key match-ups.