Meeting in London on April 1, U.S. President Barack Obama and Russian President Dmitry Medvedev announced agreement to “work out a new, comprehensive, legally binding agreement on reducing and limiting strategic offensive arms.” They stated their intention to conclude this agreement before the Strategic Arms Reductions Treaty (START) expires in December, and noted that the new treaty would “record levels of reductions in strategic offensive arms that will be lower than those in the 2002 Moscow Treaty on Strategic Offensive Reductions.”1
The presidents instructed their negotiators to begin work immediately and report back by July, when President Obama will visit Moscow. U.S. and Russian negotiators held their first consultative meeting in Rome on April 24, and stated that they will hold their first round of full negotiations in mid-May.
Presidents Obama and Medvedev agreed to conclude a follow-on treaty to START as the first action in a step-by-step process of reducing their strategic nuclear arsenals with the ultimate goal of achieving a nuclear- free world. This ambitious objective will require broadening past U.S.-Russian nuclear arms control efforts, for example, to include non-deployed strategic nuclear warheads and tactical nuclear weapons, which have not been limited previously. This will be a long-term process.
[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.