The Clintons had several of their campaigners and staff go to prison already for colluding with China and funneling millions of dollars to their campaign.
The Democrat Party wouldn’t have much money if it weren’t for the Chinese. Remember how the Hussein received so much money from mysterious anonymous “small” donations. Most visits to his website were from foreign countries and yet that is how he raised so much money, from millions of small donations through the website.
Don’t think there is any easy way to prevent this, just expose the fact that the left relies on communist money.