Over the Labor Day weekend, Biden endorsed pro-union legislation in California akin to a bill Newsom previously vetoed, effectively throwing not-so-subtle shade at him and quietly pitting the two heavyweight Democrats against each other on a fraught labor issue.

“Newsom has been essentially needling the Democratic establishment about their messaging and going on offense with all the stuff he’s done with [Florida Gov. Ron] DeSantis,” Democratic consultant Steve Maviglio told Politico. “And here was a good chance for Biden to poke him back.”