House Sergeant-at-Arms William Walker, who led the D.C. National Guard during the Jan. 6, 2021, Capitol attack, said law enforcement would have responded differently if the rioters had been Black. “I’m African American. Child of the Sixties. I think it would have been a vastly different response if those were African Americans trying to breach the Capitol,” Walker told the House Jan. 6 panel in April, according to a transcript released this week. “As a career law enforcement officer, part-time soldier, last five years full-time, but a law enforcement officer my entire career, the law enforcement response would have been...