Donald Trump had cast this year’s primaries as a moment to measure his power, endorsing candidates by the dozen as he sought to maintain an imprint on his party unlike any other past president.

But after the first phase of the primary season concluded Tuesday, a month in which one-quarter of America’s states cast their ballots, the verdict has been clear: Trump’s aura of untouchability in Republican politics has been punctured.

In more than five years — from when he became president in January 2017 until May 2022 — Trump had only ever seen voters reject a half-dozen of his choices in Republican primaries. But by the end of this month, that figure had more than doubled, with his biggest defeat coming Tuesday when Gov. Brian Kemp of Georgia thrashed a Trump-backed challenger by more than 50 percentage points. Three other Trump recruits challenging Kemp allies also went down to defeat.