President Donald Trump finally lashed out at California Governor Gavin Newsom after days of trolling on social media by the Democrat. Newsom and his office have mocked and mimicked Trump online, and swiped at some of the Republican president's biggest MAGA supporters on social media.

Inside the MAGA-parodying strategy that has rocketed the California governor to algorithmic dominance — while annoying leading Republicans.

The California governor has poked fun at the president's social media posts in recent weeks, having his press office copy Trump's use of all capital letters in their posts and giving Republicans and right wing figures denigrating nicknames.