WASHINGTON — Fox News host Tucker Carlson on Monday released security video from the Jan. 6 attack on the U.S. Capitol, using footage provided exclusively to him by Speaker Kevin McCarthy to portray the riot as a peaceful gathering. When McCarthy was struggling to gather the votes to lead the House, Carlson used his program to list two “concessions” he could make to win over far-right Republicans. Carlson announced in late February that McCarthy had given him exclusive access to 44,000 hours of security video from the deadly riot before he unveiled some clips of the video on his show Monday night. Carlson focused Monday’s segment on promoting former President Donald Trump’s narrative by showing video of his supporters walking calmly around the U.S. Capitol. Video that Carlson didn’t air shows police and rioters engaged in hours of violent combat.