>>Be careful, they have laws forbidding non US citizens to meddle in their processes, even if they themselves do habitually ;-))

The US MSM sometimes likes to use "collusion" as a simile for "criminal" or "conspiracy" but in real life, colluding isn't illegal.

Conspiracy is a much better word than collusion if people want to assert that somebody joined a conspiracy, aided and abetted a criminal act, or actively concealed a criminal act.

Certainly Section 30121 of Title 52 prohibits foreign nationals from contributing any thing of value to an electoral campaign, or for any US person/entity to solicit such. So it wasn't a great look for Trump's son to be associated with an offer of dirt on Hillary from Russians. He should have used an intermediary like the rest of the swamp. As an example, the infamous pee-pee dossier procured by Democrats and then Republicans was a "thing of value" to undermine Trump's electoral prospects, assembled by a Brit using mostly Russian informants. Did a US person/entity solicit this and did it come from foreign nationals? Not if gets routed via US think tanks and other sanitizers who pass it on with a "US" stamp on it.

Another alternative is to establish a charity or some other vehicle that receives funds or "things of value" for noble purpose, with electoral or other collateral gain or conspiracy unable to be demonstrated.