Since the SEA and the complexion of the Single Market, the increasing flow of EU directives – with its inherent characteristics of supremacy over national law and of direct effect characterizing de facto most of the EU legislation, including most directives – made member states realize the usefulness of being proactive negotiators in EU law making. Consequently, all member States elaborated procedures and established ad hoc coordinating bodies to deal at best with the formative phase of EC law – i.e. that phase in which the national administrations (in primis the governments and its bureaucracies, but also the Parliaments and the parties in them and, where relevant, also regional authorities) determine their “national position” to be negotiated with their European partners.
[Trump] didn't say one word about Ukraine and he had to be briefed on this stuff. The only person to say that the United States says the annexation of Crimea wasn't legal and disagrees with Russia was the president of Russia. The overall contrast [with Trump's criticisms of German Chancellor Angela Merkel, British Prime Minister Theresa May, and the EU earlier in the trip] coupled with Trump's inability to say Russia had done anything to contribute to the downturn of US-Russia relations, either way it's scary. Either he forgot there's a problem or he wasn't willing. He would have had no problem listing his grievances against Germany, but against Putin, he's not capable of saying anything.