I think what this means is that Deep State entities on both sides of The Pond have been keeping an eye on the Trump family for years.
Yeah.
Any outsider who looks like a threat to their power gets extreme scrutiny early on from the band of extortionists, blacmailers and toadies they employ to fabricate baseless accusations when they do attempt to use the system eventually.
They REALLY hate Trump. They see him as a filthy Capitalist exploiter, not noble Socialists like themselves.