Experts on extremism are increasingly shifting their focus from right-wing extremism to what they see as a rise of violence on the left, according to a new report.

"The past few months have seen enough of a rise in politically motivated violence from the far left that monitors of right-wing extremism have begun shifting their focus, and sounding the alarm," a report on Vice.com said.

Liberal violence has seen an uptick since President Trump was elected.

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The subject of left-wing violence reared its head last week after a Bernie Sanders supporter opened fire on congressional Republicans playing baseball last Wednesday, injuring five including House Majority Whip Steve Scalise (R-La.).

At UC Berkeley earlier this year, protesters started fires, attacked crowds of people, and smashed property.

Left-wing extremism is nothing new, the Vice.com report admitted, citing the Black Panthers and Weather Underground.

“What we’re seeing is the democratization of extremism and the tactics of radicalism," said Brian Levin, former New York City police officer and director of California State University's Center for the Study of Hate and Extremism. Levin added that his warnings about the rising tensions have been dismissed in the past.

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