If you think you’ve read everything you need to know about the violent attempt to overthrow the US government on 6 January 2021, this insider’s book by a 6ft 7in African American Capitol police officer will change your mind. Harry Dunn has written a 237-page cri de coeur for himself and for the US. It is a story that is more important than ever when so many crazed Republicans continue to revere the traitor whom the justice department says is directly responsible for this singularly shameful episode in American history. On that terrible day, Dunn and hundreds of his fellow Capitol cops were in hand-to-hand combat with scores of drunken and drug-addled seditionists. The police officers were attacked with everything from metal bike racks to flagpoles and banisters ripped from the stairs of the building. “You could hear the screaming and hollering as the battle raged on,” Dunn writes. “Blood was streaming down officers’ faces. They were yelling, grunting, and trying to force the rioters back. Many of them were blinded and coughing after being doused with pepper spray, bear spray, and even WD-40.” In the years since then, Dunn has beaten back post-traumatic stress disorder with the help of his family, his friends, professional therapists and sympathetic Congress members like Jamie Raskin of Maryland. Raskin took Dunn to lunch after the officer called the congressman’s office to tell him he was the source of an anonymous quote in a story in BuzzFeed which – to Dunn’s delight – Raskin had tweeted out. Since then, Dunn has made dozens of public appearances and written this book, with a single goal: “I want the people responsible for that day, including Trump … to pay a price, just like we paid a price … I will always be standing my ground to make sure our democracy exists. And I’ll ask that you stand with me so that nothing like this ever happens again.” Dunn reserves his greatest anger for those he and his fellow officers risked their lives for in the face of that furious mob. He was “full of rage” when it became clear that “Republicans were walking away from their earlier condemnation of the attack … Congress members … whom I had guarded and protected through State of the Unions [and] inaugurations … had suddenly turned on me. It angered me that loyalty to a single individual could overwhelm otherwise decent people … who had fallen into the darkness and forgotten their oaths of office.” He writes about how the day was particularly traumatic for Black police officers, because they were repeatedly called the N-word, as well as being beaten and sprayed and kicked and pummeled. He compares their treatment by Trump and others to the notorious assault in 1946 of a decorated Black second world war veteran named Isaac Woodard, who was pulled from a Greyhound bus because “the bus driver hadn’t liked the way Woodard asked to use the restroom” outside Augusta, Georgia. Local police officers beat him savagely and “the police chief used his baton to gouge Woodard’s eye sockets until both eyeballs ruptured beyond repair. Woodward was blind from that day forward.” “Now multiply that betrayal by two thousand times,” Dunn writes, “because that’s how many Capitol and Metropolitan police department officers were viciously assaulted by Americans whose democracy we defend every day.” After that, “we were betrayed by our president, many of our elected officials, and thousands of other Americans we had sworn to protect”. Dunn testified before the January 6 House committee and at trials for some of the terrorists who have been convicted for their crimes. Just like Woodard, “we were wearing our uniforms and badges, signifying our service to our nation”. But also just like Woodard, “to them we were throw-away people to be despised, hated and derided … merely because of the color of our skin … January 6 was never about politics. It wasn’t about election fraud. That was an excuse for people to do some shit they had wanted to do in the first place.” Last week’s election results in Ohio, Virginia, Kentucky and Pennsylvania – like the elections of 2018, 2020 and 2022 – proved once again that a majority of Americans reject the extremist agenda embraced by the Maga movement and its hideous head. Having finally recovered from most of the injuries inflicted on that fateful day in January 2021, Dunn feels he’s “been given a new lease on life, another chance to make a difference and that is what I want to do”. He ends the book with a plea to readers to do exactly what he is trying to do with that second chance: become a tireless foot soldier in the never-ending fight against racism and ignorance and book burning in America. He writes: “Be the change you want to see in the world.”