A group of masked U.S. Border Patrol agents showed up in trucks outside of the press conference at the Japanese American National Museum.

The armed and masked agents assembled outside a museum where the governor was speaking in what Mayor Karen Bass of Los Angeles called “a provocative act.”

California Governor Gavin Newsom unveiled his campaign to slash the state’s Republican-leaning congressional seats, portraying the effort as crucial to opposing President Donald Trump while accusing the White House of stationing armed federal agents outside the event.