Sen. Bernie Sanders, I-Vt., told a crowd of thousands at a rally in Los Angeles on Saturday that the U.S. was facing a moment of “extraordinary danger” as he criticized the political, economic and social policies of Donald Trump.

Sanders, who also dropped by the music festival Coachella over the weekend, has been criss-crossing the U.S. to speak out against the new Republican administration.

“We are living in a moment of extraordinary danger,” he said, “and how we respond to this moment will not only impact our lives but will impact the lives of our kids and future generations.”