U.S. Ambassador Charles Kushner found himself at the center of a diplomatic conflict with France over his failure to comply with a subpoena regarding statements made by the State Department about the killing of a right-wing radical in Lyon. According to Bloomberg, French authorities viewed this act as a disrespect to official requests and decided to restrict direct contact between the ambassador and French officials. This strict step demonstrates the seriousness of the French side regarding adherence to diplomatic protocols. The incident of disobedience to the subpoena was a turning point in the relations, highlighting the tension in resolving delicate international issues between the U.S. and France.