Musk and Gor disliked each other since before Trump reclaimed power on Jan. 20 — with the Tesla and SpaceX CEO describing Gor as “sleazy” during the transition and questioning his staffing picks. But the world’s richest man had the president’s ear and friendship through last week. Simmering behind the scenes was a grudge nursed by Gor over a March 6 Cabinet meeting, during which Musk “humiliated” him by slamming the pace of staffing the administration, said the sources, each of whom have interacted closely with Gor. “He was bragging to other people that he was going to get one...