There is, of course, a robust debate as to the meaning of the term “High Crimes and Misdemeanors.” To me, it connotes an action or series of actions that endangers the proper functioning of the legal or political system.
After the release of the Mueller Report, I concluded that Trump’s actions to obstruct justice did not meet the standard, as there was no underlying crime, and the investigation was ultimately permitted to reach its proper end. I would further argue that the Stormy Daniels hush money case does not meet the standard, simply because Trump was not in office at the time of the events. While we do not know exactly what Trump did with Ukraine, however, it seems increasingly likely that he was tailoring the foreign policy of the United States solely in his own political interests. In my opinion, that does, in fact, meet the legal requirement for impeachment, even though it is highly unlikely to occur.
While you’re contemplating that, spare a moment for the poor residents of Ukraine. They have been forced to choose between the American incumbent and his potential successor. My guess is that the Ukrainian government will just stall for time, and say nothing to offend anyone.