NPR is reporting on significant primary election outcomes in Texas and broader national political trends. Republican Sen. John Cornyn was defeated by Texas Attorney General Ken Paxton in a low-turnout runoff. Paxton had received an endorsement from President Donald J Trump a week before voting concluded, making Cornyn the third sitting lawmaker to lose to a Trump-backed challenger in a 10-day period. NPR Congressional Correspondent Claudia Grisales reported that Paxton supporters viewed Cornyn as having betrayed the Republican Party by not fully aligning with Trump's priorities. Cornyn had argued his alignment with Trump was over 99% and that Paxton's legal issues would harm the GOP's chances to retain the seat.

In Democratic primaries, Reps. Julie Johnson and Al Green also lost. NPR's Megan Pratz noted that Green's defeat to Rep. Christian Menefee was influenced by redistricting changes that made Green's original Houston-area district heavily Republican. Democrats view Paxton's nomination as an opportunity to win a Senate majority in November, with state Rep. James Talarico as their nominee, anticipating an expensive contest.

NPR also notes that Democratic voters in Iowa will decide between state Rep. Josh Turek and state Sen. Zach Wahls to challenge Republican Rep. Ashley Hinson. Other primaries being watched include Iowa's GOP governor's race, California's governor's race, and the impact of redistricting on U.S. House nominees and Montana's 1st Congressional District.

NPR's Swing Shift project, led by Senior Political Correspondent Tamara Keith, found that swing voters are divided on who to blame for high gas prices but agree the costs are significantly impacting their personal finances.

In Louisiana, Republican lawmakers moved to eliminate one of two majority-Black congressional seats following a U.S. Supreme Court ruling, a move that could shift 15 seats nationally in favor of Republicans. NPR's Ximena Bustillo reports that immigration courts within the Justice Department are employing a new tactic of scheduling mass hearings for hundreds of immigrants, with potential deportation orders for those who fail to appear.

An exclusive story by NPR's Miles Parks reveals a new report indicating that replacing aging U.S. voting machines could take decades without a substantial financial commitment from Congress. By the next presidential election, the average age of voting equipment in the U.S. is projected to exceed nine years. NPR's Ron Elving examined how the phrase "homeland security," initially intended to foster unity, has instead contributed to political insecurity. Additionally, NPR's Quil Lawrence reports that veterans' advocates are seeking answers regarding the lack of progress on housing for homeless veterans, despite an executive order issued by President Trump last year.

Political correspondent Ashley Lopez and congressional reporter Eric McDaniel report that single-party primary elections are contributing to increased polarization in Congress. They note that these primaries limit voter choice and incentivize elected officials to prioritize party loyalty, with recent GOP primaries seeing Trump-backed challengers ousting incumbents.

In non-political news, NPR's Rachel Treisman writes that 14-year-old Shrey Parikh from Rancho Cucamonga, California, won the Scripps National Spelling Bee. Parikh secured the title in a rapid-fire spell-off, correctly spelling 32 words to his opponent's 25.