Air Force Gen. John Hyten is commander of U.S. Strategic Command and President Trump’s nominee to be vice chairman of the Joint Chiefs of Staff. Last week the Senate Armed Services Committee voted 20-7 to send his nomination to the floor—but not before it was clouded by allegations of sexual misconduct from a female subordinate.

Army Col. Kathryn Spletstoser’s accusations are graphic and nauseating. But they are discredited by evidence. I have reviewed the written record of the case, including a redacted report from the Army...