Over the years, Trump has threatened to intercede in the state’s long-running homeless crisis, vowed to withhold federal wildfire aid as political leverage in a dispute over water rights, called on police to shoot people robbing stores and warned residents “your children are in danger” because of illegal immigration.

Trump ignited a fight with Newsom after deploying thousands of National Guard troops and 700 Marines to Los Angeles to quell demonstrations protesting the Immigration and Customs Enforcement (ICE) raids across the city. Trump has lashed out at Newsom, suggesting earlier this week that the sitting governor should be arrested.

California Republicans have found ways to convince Trump he’s helping the state rather than Newsom before, one expert said.