Yes, they probably have, relationships based on trust. Using information for political gain is not the type of stuff that allows that trust to continue existing.
So for US politicians to both know and abuse this, someone in the US intelligence community would have had to be willing to lose a lot of trust on the EU side by both sharing the intelligence and allowing it to be used for political gain and forcing the EU side to become their political puppet.
That doesn't seem reasonable to me, but who knows. If that's what happened though, the US can forget any trust in the near future.
So for US politicians to both know and abuse this, someone in the US intelligence community would have had to be willing to lose a lot of trust on the EU side by both sharing the intelligence and allowing it to be used for political gain and forcing the EU side to become their political puppet.
That doesn't seem reasonable to me, but who knows. If that's what happened though, the US can forget any trust in the near future.