California Governor Gavin Newsom gave President-elect Donald Trump a barely concealed warning following the Republican's dramatic election victory, vowing to "defend our Constitution and uphold the rule of law" in a post on X,

Newsom had been an outspoken advocate for Harris and, before he dropped out of the race, President Joe Biden. The governor, who is barred by term limits from running again, attended a number of Democratic campaign events in swing states, and his political action committees spent big on boosting Biden prior to his July exit from the race.