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Good morning.

Here’s what you need to know:

• A shake-up at the White House.

John Kelly asserted authority on his first day as President Trump’s chief of staff, firing Anthony Scaramucci, the bombastic communications director, 10 days after he was hired.

Mr. Kelly, a retired four-star Marine general, has been tasked with bringing order to the West Wing, although his predecessor, Reince Priebus, had also been given assurances of control before he was fired.