Peter Adams's The Insurrectionist is the first comprehensive biography of Major General Edwin A. Walker, a figure who, in the 1950s and 1960s, became a leader of a far-right political movement known for its elaborate conspiracy theories, authoritarianism, and uncompromising white supremacy. Sixty years before the January 6, 2021, attack on the U.S. Capitol, Edwin Walker was charged with insurrection and seditious conspiracy. He was arrested...