Author Anthony Swofford, an ex-Marine who gained acclaim for writing about his own experience in the Gulf War, on Wednesday described his view of a far-right senator’s move to block military promotions, and he didn’t hold back. Swofford assailed Sen. Tommy Tuberville during an appearance on MSNBC’s “The ReidOut with Joy Reid.” “It's kind of disgusting, really,” the "Jarhead" author …