A treaty from 2000 between the Ukraine and the United States requires the two countries to cooperate on law enforcement matters, a factor that may help to explain why President Donald Trump felt comfortable questioning the involvement of Joe Biden and his son, Hunter, in Ukrainian affairs, during a telephone..…

On the Ukrainian side, Lutsenko seems like an unsavory character, but he has been talking to the American news media and may be available. Perhaps even Zelensky himself, and/or his aides, will finally get to take their much-desired D.C. visit, albeit to the other end of Pennsylvania Avenue...…