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.
Zoomers would make surreal TikTok reenactments of it, boomers and talking heads would froth about how the CIA had to be "tough on Cuba" and how it was probably the Chinese's fault anyways, then someone would tweet about how they're rebooting Felix the Cat and making him bi and everyone would collectively lose their minds over that and forget about the news altogether.
One of the agents involved would be a big beltway :LIB: who Democrats would parade around as an example of "real patriotism" to own the Trump voters. Trump would say something awkwardly funny about how Oswald was a tremendous shot or something.