Personally, I think it would be in the news for a couple days and then most Americans would pretty much forget about it and move on. Some folks on the left would point out this is further proof we need to abolish the CIA. The US Senate responds by a 98-2 vote to increase funding for the CIA, because white suburbanites are now scared the CIA will be eliminated and brown people will start bombing their big box stores.
Telling that Americans can learn all about how the CIA helped kill a million people in Indonesia and not care, but killing one president is too much so that's what would cause people to question the government.
Yeah, for sure. I think it just completely shatters the illusion of democracy when an elected and pretty popular president can get merked by an unelected cohort of the state.