(Reuters) – A police officer hurt by Donald Trump supporters trying to overturn his election defeat and a filmmaker who recorded some leaders of the U.S. Capitol riot will be among the first witnesses when hearings into the assault begin on Thursday, organizers said. The Democratic-led U.S. House of Representatives Select Committee will attempt to reverse Republican efforts to downplay or deny the violence on Jan. 6, 2021, with five months to go until Nov. 8 midterm elections that will determine which party controls Congress for the next two years. The committee’s first public hearing will beg…