The big picture: Trump’s lifelong habits — to improvise, to attack, to deny the undeniable, to leak — spread fast through the White House, metastasized in the agencies, and infected Republicans in Congress. They are Republican habits now…

“Trump’s habits have infected Kelly,” the official also said. “Trump never backs off, and Kelly continues to insist that he’s right.”

Why it matters: Trump has spent his life creating his own reality inside his head. Spend enough time working with him, and it becomes hard to resist seeing the world his way. Those who refuse to do so wind up lashing and leaking.