Welcome to Meet the Press Now.

I'm Kristen Welker in Washington.

And if it's Tuesday, it's the biggest primary day of the year so far.

Voters are heading to the polls in six states today with key tests of

President Trump's grip over the Republican Party ahead of the midterms. The president is devoting

significant resources to stamping out dissent within his own party and wielding endorsements

as a cudgel, including with a surprise announcement today a bombshell about the battle for the

Texas Senate. But nowhere will the president's influence be tested more than Kentucky's fourth

congressional district today, where Republican Congressman Thomas Massey, who pushed for the

release of the Epstein files and voted against the president's big beautiful bill,

faces Trump-back challenger Ed Galrine. Today, the president repeatedly slammed Congressman Massey while speaking outside the White House.

Thomas Massey's a terrible congressman. He's been a terrible congressman from day one.

Dealing with him is just a horrible. I don't think he's a Republican. I think he's actually a Democrat. He's not a libertarian. Sometimes they say something. He's really a Democrat. He votes against us all the time. This guy, Massey, is terrible. Let's see what happens. It's not easy beating in Covence, but we have a great guy running

against Massey. Massey's a terrible car. I think the worst congressman, the Republican Party's

ever had. That'll be tonight. That'll be good television. And we'll see what happens there.

The president's effort to oust Massey comes after he successfully got his revenge against Louisiana Senator Bill Cassidy,

who voted to impeach the president in 2021.

Cassidy lost his primary this weekend.

And earlier this month, the president helped defeat five Republican state senators in Indiana

who opposed his redistricting push.

But the president's loyalty test could risk rubbing some Republican voters the wrong way,

particularly in Massey's district.

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