And they were vindicated...
Investigations proved that the FBI spied on Trump's campaign and that the "Russia collusion" stuff originated from Clinton campaign's opposition research. That stuff wouldn't have been exposed if Hillary won in 2016.
And we know that some in the media tried to suppress the Hunter Biden laptop story despite the fact that the DHS confirmed in 2020 that it wasn't a product of Hacking or Russian propaganda.
Sorry, that isn't a "deep state", not as I see it. That was a handful of anti-Trump people in the FBI and in the Clinton campaign working with reporters to get him. And they believed what they had. And of course all of it was exposed.
Stuff like this has gone on for decades. There were people in the FBI - Mark Felt/Deep Throat - who were leaking to the media about the investigation in order to undermine Nixon. Lots of example. In the US and elsewhere. It's called politics. Is it a problem? Yes, but its not some "deep state" apparatus that is manipulating the country.
Question: You don't think there would be people in this "deep state" who would leak to the media about their plans to kill JFK? And cover it up?