It can be two things. Read this or anything else about Cambridge Analytica to get a sense of the difference between what they were doing and the same hack political radio ad hour after hour.
Trump's ties to russia are many and varied, going back forty-plus years. It’s all been documented in Proof of Conspiracy, Mueller found collusion; these are not hypotheticals. It’s a known part of the current befuckdedness.
Is it the ONLY part? No. But it starts there and it stays there.