Even paranoiacs have enemies, they say — but sometimes they’re just paranoid. Massachusetts Rep. Ayanna Pressley, a founding member of The Squad, organized 59 Democrats to co-sign her letter demanding a federal investigation of a spate of supposed lynchings that never happened. The document pronounced its signatories “extremely alarmed by reports of Black people found hanging from trees in numerous states throughout our country.“ “The series of deaths,“ the letter continues, “raises significant suspicion of foul play given the role of lynching in our nation’s history.” Pressley and her colleagues call for a federal investigation of every hanging death of...