Meet the Press NOW — August 19

Voters are heading to the polls for primaries across Alaska, Wyoming, California and Florida. NBC News Chief Data Analyst Steve Kornacki previews the key races. NBC News Senior National Politics Reporter Jon Allen hits the road as part of his Drive to Decision Day series to talk to voters in battleground Ohio. Former Broward County Mayor Dale Holness (D-Fla.) joins Meet the Press NOW to discuss his bid to unseat eleven-term Rep. Debbie Wasserman Schultz (D-Fla.).

The 60-day window for talks between the U.S. and Iran expires with little progress towards ending the war. NBC News Senior National Politics Reporter Jon Allen hits the road as part of his Drive to Decision Day series to talk to voters in battleground congressional districts. Elijah Manley (D-Fla.) and state Rep. Angie Nixon (D-Fla.) join Meet the Press NOW to discuss their bid for Congress ahead of Tuesday’s primary in Florida.

Kristen Welker interviews newly confirmed Attorney General Todd Blanche, House Minority Leader Hakeem Jeffries (D-N.Y.) and Rep. Ro Khanna (D-Calif.). Sara Fagen, Jonathan Martin and former Sec. Jeh Johnson join the roundtable.

President Trump says he will declare the Strait of Hormuz a U.S. territory as the war with Iran takes a growing toll on troops, weapons and wallets. Rep. Mike Flood (R-Neb.) discusses his re-election campaign in a district Democrats view as a pickup opportunity. Luigi Mangione pleads guilty to federal charges before standing trial for the murder of United Healthcare CEO Brian Thompson.

Democratic primary winners David Crowley (D-Wis.) and Lt. Gov. Peggy Flanagan (D-Minn.) join Meet the Press NOW to discuss the road ahead to November’s midterms. Former CDC official Dr. Demetre Daskalakis explains why some health officials say they will not adopt the Trump administration's new guidelines on vaccines.