When Nielsen showed up at the White House on April 7 to meet with Trump in the Yellow Oval Room, Mulvaney was there with the president. She started to explain a major agreement she had secured in private negotiations with Mexican authorities the previous week. Mexico had promised to stop 50 percent of the migrants flowing through its internal border checkpoints as they headed north. But Trump cut her off. Looking at Mulvaney, he said, “See, this is what’s wrong with her. It should be 100 percent.”
