President Donald Trump sat with Robert Mueller in the Oval Office in May of last year to interview him for a job: director of the FBI.
The next afternoon, Trump was in another Oval Office meeting when an aide interrupted with news that Mueller had taken a different post: special counsel to investigate Trump’s campaign.

Robert Mueller
Trump and Attorney General Jeff Sessions, who attended both meetings, were blindsided, according to a person familiar with both meetings. The president immediately blasted Sessions for not knowing the announcement was coming and challenged how the person he’d just interviewed for the FBI job — and who Trump said had a past dispute with him over golf club fees — could now be investigating him, the person said.