In more than five years — from when he became president in January 2017 until May 2022 — Mr. 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 on 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…

Mr. Trump remains broadly popular among Republicans and has a political war chest well north of $100 million. But there has been a less visible sign of slippage: Mr. Trump’s vaunted digital fund-raising machine has begun to slow. An analysis by The New York Times shows that his average daily online contributions have declined every month for the last seven months that federal data is available.

Mr. Trump has gone from raising an average of $324,633 per day in September 2021 on WinRed, the Republican donation-processing portal, to $202,185 in March 2022 — even as he has ramped up his political activities and profile.