From the dudes who brought you the Iran Deal, détente with communist Cuba, and “Pod Save America” comes “Running with Beto.” The 93-minute Don Quixote remake masquerading as an HBO documentary follows Robert Francis O’Rourke, failson, former furry, and quite possibly the most boring man in America, as he drives around in a sweaty blue shirt, rasping into cellphone cameras, posing with moonstruck teenagers, and otherwise squandering $80 million in his failed attempt to unseat Texas Sen. Ted Cruz, a man so widely disliked that one of his Republican colleagues once joked, “If you killed Ted Cruz on the floor of the Senate, and the trial was in the Senate, nobody would convict you.”

By now, “Beto mania” — apparently pronounced Beh-toe, except when it’s pronounced Beat-o or Bed-oh — appears to have (mercifully) run its course, but to watch the dull, painfully overlong documentary is to relive the media-hyped, this-time-it’s-for-real midterm election campaign from within the eye of the echo chamber. O’Rourke, his team, his celebrity fans, and narrative-promoting flacks in the media were all seemingly convinced he would be victorious, a belief presumably shared by those who greenlighted the documentary itself and observable from director David Modigliani’s final product.