Their activities were with a couple of independent political committees and a couple of Congress Critters. None were named, suggesting that the committees and Congress Critters were unaware the donations were in violation of Federal law. That said, their activities appear not to have any connection to Trump. Similarly, Giuliani may not have been aware of their activities.
At this point it looks like any MSM or Dems who try to attack Trump or Giuliani through this will come up with a load of Whomp-Whomp.
Guilt by association doesn't work. E.G. a family friend, decades ago, attempted to kill his wife. However, we didn't learn this was what happened until years later.
Since info about the case is on the Internet and she is still alive, I won't give any more details.