Actor Robert De Niro clashed with a group of pro-Trump protestors during a campaign presser for President Joe Biden in New York City, RadarOnline.com can report. The startling incident unfolded on Tuesday as De Niro, 80, led a press conference outside the Manhattan courthouse where ex-President Donald Trump is still on trial for the alleged falsification of business records. The Goodfellas star did not hold back during the tumultuous press conference on Tuesday. He claimed that ex-President Trump “wants to sow total chaos,” “destroy not only the city,” and “eventually he could destroy the whol…