Previewing Pennsylvania races ahead of Tuesday primaries
Voters in Pennsylvania will head to the polls Tuesday to select their candidates in a number of races ahead of the November midterm elections. Democrats will be focused on several close congressional races in the state as they attempt to regain a majority in the House of Representatives. Republicans voters will also choose their nominees for governor and U.S. Senate. John Micek, political columnist and opinion editor for PennLive.com, joins CBSN to discuss all the key races.