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 President 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."

On the latest stop of his national "Fight Oligarchy" tour, the lawmaker criticized what he sees as Trump's efforts to advance the interests of billionaire businesspeople over those of the working class.

"I'm no longer talking about how we're moving to oligarchy," Sanders told the crowd. "I'm talking about how we are living today in an oligarchic form of society."

The same night but on the opposite coast, Trump attended the Ultimate Fighting Championship (UFC) event at the Kaseya Center in Miami, where the crowd erupted in applause as he entered and shouted chants of "U.S.A."