Her job WAS to hand the mic to the next person. His job was to surrender the mic after he had finished. The president has NO obligation to talk to any certain person, or allow any certain reporter to commandeer the proceedings. If you had watched a few other reporter’s questions you would have seen how the operation works.
I know how the operation works. I had a WH Press Corps Press Pass in 1972-74, in Miami, for when Nixon was on Key Biscayne.
The dirtbag Acosta wasn’t ready to surrender the mic, and made grabbed at it 2-3x. Trump’s mistake is allowing that CNN lowlife to have a WH press pass; he’s the enemy.