Good evening. I'm Jeff Bennett.

And I'm Amna Nawaz on the news hour tonight.

Texas Attorney General Ken Paxton defeats incumbent Senator John Cornyn in a Republican primary runoff election and the latest show of President Trump's grip on the GOP.

We speak with Cuba's deputy foreign minister amid escalating threats from the White House,

including an arrest warrant for the country's former leader.

We have reasons to have doubts about the seriousness of the United States side.

In the midst of our conversations, the United States has continued to take measures that affect Cuba and the News Hour.

President Trump proved his political power in Texas last night as his endorsed candidate in the state's U.S. primary runoff won in a landslide.

Attorney General Ken Paxton secured the Republican nomination in Texas,

beating incumbent Senator John Cornyn by nearly 30 points.

President Trump is the leader of our party and his endorsement in this most power is the most powerful force in politics. And I'm honored to have his support,

and I look forward to working with him in the Senate to deliver for Texas.

Cornyn, who has represented Texas in the Senate for more than 20 years,

said he would support Paxton in the general election.

There's a simple rule in elections.

You've heard me say it before, and that is the candidate who gets the most votes wins.

The party and the majority gets to govern, and my hope is to keep my party in power for generations. Paxton will face Democratic nominee James Tolariko in the fall in what's set to be one of the nation's marquee midterm races.

For analysis of last night's results in Texas, we're joined now by Brandon Roddinghouse.

He's a professor of political science at the University of Houston

and co-host of Houston Public Media's Party Politics. It's great to have you here. Thanks for being

with us. And my pleasure. So I saw where you described John Cornyn's loss last night as the

end of Bush-era Republican model politics in Texas. Is this primarily about Donald Trump or is there like a deeper

...