Brad Lander was manhandled and marched out of the courthouse after trying to shield a man from arrest – but, he tells the Guardian, he’s not backing down

“You don’t have the authority to arrest U.S. citizens,” Lander told the masked agents.

The incident comes days after police handcuffed Sen. Alex Padilla, D-Calif., after he was forcibly removed from a press conference that DHS Secretary Kristi Noem was holding.