I don’t think there was anti-cop rhetoric coming from Obama but it was coming from community leaders with police involved shootings. But you are right that it has toned down. The reason is not the President. The reason is the more and more law enforcement is using Body Worn Cameras. These cameras have cut down the allegations of police brutality. Moreover, the times when cops have been abusing their authority, they have been being charged criminally. Cameras have been very useful to law enforcement. In my opinion, every town should have BWC on their officers.