A group of seven Capitol Police officers filed a lawsuit on Thursday accusing former President Donald J. Trump and nearly 20 members of far-right extremist groups and political organizations of a plot to disrupt the peaceful transition of power during the Capitol riot on Jan. 6.
The suit, which implicated members of the Proud Boys, the Oath Keepers militia and Trump associates like Roger J. Stone Jr., was arguably the most expansive civil effort to date seeking to hold Mr. Trump and his allies legally accountable for the storming of the Capitol.
While three other similar lawsuits were filed in recent months, the suit on Thursday was the first to allege that Mr. Trump worked in concert with both far-right extremists and political organizers promoting his baseless lies that the presidential election was marred by fraud.
“This is probably the most comprehensive account of Jan. 6 in terms of civil cases,” said Edward Caspar, a lawyer who is leading the suit for the Lawyers’ Committee for Civil Rights Under Law. “It spans from the former president to militants around him to his campaign supporters.”