Meet the Press NOW — August 4

Voters are casting their ballots in dozens of primary races across five states. Democratic candidates in Michigan’s seventh congressional district, William Lawrence and Matt Maasdam, join Meet the Press NOW ahead of tonight's consequential primary to make their final pitch to voters. Rep. Debbie Dingell (D-Mich.) discusses the key primary races across Michigan and what it will take for Democrats to unify ahead of November.