Researchers: More Than a Dozen Extremist Groups Took Part in Capitol Riots JANUARY 16, 2021 Capitol police officers in riot gear push back demonstrators who try to break a door of the U.S. Capitol on Wednesday, Jan. 6,… Capitol police officers in riot gear push back demonstrators who try to break a door of the U.S. Capitol on Wednesday, Jan. 6,… WASHINGTON - In the days since the violent Jan. 6 rampage at the U.S. Capitol by President Donald Trump’s supporters, a fuller picture has emerged about the rioters, with researchers identifying members of more than a dozen extremist groups...