Fans at a Yankee game hung a banner that read "Trump Won, Save America" over the second deck, and they were escorted out in handcuffs.
"I'm optimistic about the country's capacity to take on real issues," Bush said on a podcast. "And there is a real issue in police accountability."
Anthony Alvarez, 22, appeared to be holding a gun when the officer shot him March 31. The footage was posted Wednesday.
Access to the records, one expert said, could help squash the "wandering-officer phenomenon."