Tuesday's primary elections across Florida, Wyoming, Alaska and Texas produced a mixed night for candidates endorsed by President Donald Trump, with most of his picks prevailing but at least one notable defeat. The results matter because they will help shape which party controls Congress after the 2026 midterms and highlighted a growing left-wing insurgency within the Democratic Party, particularly in Florida.

In Florida, Democratic Socialists of America-aligned candidates made significant gains, described as a "socialist insurgency" in Trump's home state, while Byron Donalds won the Republican gubernatorial primary and Senator Ashley Moody secured the GOP's US Senate nomination. Elsewhere, Trump's influence over the Republican Party was underscored when his endorsed candidate Ken Paxton defeated former Senator John Cornyn in Texas, though races in Alaska and Wyoming also tested his sway over crowded primary fields. Other contests included a "Hebrew Hammer" candidate overcoming a rival hit by antisemitism controversy and a veteran Democrat fending off a scandal-hit former lawmaker and a progressive challenger.