I call it inoculation. You mention it ONCE - it gives you street cred - then you go back to bashing the Republicans and ignoring Democrat criminalities.
Plus there is precident. klintoon took big piles of cash from the chinese communists and no one of any importance was indicted. So the dims figure, what the hell, if we can get away with it, we will go ahead and take the cash.
Now if a non dim did this, he would be under the jail.
nice.