Meet the Press NOW — May 15

Voters are casting their ballots in key primaries across six states as President Trump announces he is endorsing Texas Attorney General Ken Paxton in the Senate runoff. Kentucky Senate candidates Daniel Cameron (R), Charles Booker (D) and Amy McGrath (D) join Meet the Press NOW to discuss their bid to replace Sen. Mitch McConnell. The Department of Justice sets up a $1.8 billion “anti-weaponization” fund after President Trump drops his $10 billion lawsuit against the IRS.

Police respond to a shooting incident at the Islamic Center of San Diego. President Trump strengthens his grip over the Republican Party after Trump-backed Rep. Julie Letlow defeats incumbent Sen. Bill Cassidy in the Louisiana Senate primary. President Trump calls off strikes on Iran that were scheduled for Tuesday.

Kristen Welker interviews Sens. Lindsey Graham (R-S.C.) and Chris Van Hollen (D-Md.) as President Trump returns to Washington after his summit in Beijing with Chinese President Xi Jinping. Former FBI Director James Comey joins exclusively as he faces a second indictment from the Trump administration. Lanhee Chen, Adrienne Elrod and Ryan Nobles join the roundtable.

We’re back with another episode of “Here’s the Scoop: Supreme Court Edition.” This month, NBC News senior legal correspondent Laura Jarrett is speaking with legal experts and lawyers to discuss the cases being argued this term — and the legal precedents that underpin them. Our second episode is about the transgender student athletes who are challenging laws in West Virginia and Idaho that prevent them from competing on girls’ teams in school sports. The courts of appeals in each district have sided with the student athletes, but Supreme Court watchers agree that the justices are likely to uphold the bans. Former ACLU national legal director David Cole argued Bostock vs. Clayton County (2020), in which a 6-3 majority of justices established transgender people as a protected class under Title VII of the Civil Rights Act, which prohibits employment discrimination. Host Laura Jarrett talks to Cole about his client Aimee Stephens, who was fired from her job after she came out as transgender. He explains how he won over conservative justices on the high court, and why the stakes are different for the transgender athletes in these cases.

Rep. Zach Nunn (R-Iowa) joins Meet the Press NOW to discuss President Trump's trip to China as he returns to the United States. A terrorist commander is indicted on terrorism charges and accused of plotting attacks across the U.S. A former government watchdog calls recent Trump family stock trades "completely unprecedented."