MD Voters Go to Polls in Primary That Affects Entire State

Several major state races will be decided Tuesday, aside from the presidential primaries. Republican and Democratic voters will select their candidates for the senate seat that will be vacated by the retirement of Sen. Barbara Mikulski (D -MD) and they will select candidates in all eight congressional districts. The battle to replace Rep. Chris Van Hollen in the 8th District is the most expensive house race in the nation, according to the Federal Election Commission. Chris Gordon reports.