The No. 2 diplomat at the U.S. Embassy in Beijing resigned Monday, telling staff his conscience would not permit him to formally notify the Chinese that the United States is withdrawing from the Paris climate accord. David H. Rank, a career Foreign Service officer of 27 years, had been acting ambassador until former Iowa governor Terry Branstad (R) was confirmed as the new ambassador last month. Rank held a town meeting with embassy employees to explain he had offered his resignation and it had been accepted.

Core practices of open government are eroding in the Trump Administration, with new limitations on the ability of the press to effectively question officials on U.S. foreign policy. The problem is starkly illustrated by comparing the press briefing schedules of the State Department for May 2016 and May 2017. In May 2016, the State Department held a press briefing nearly every weekday of the month, with only two exceptions. One of them was Memorial Day. In May 2017, by contrast, there was not a single State Department press briefing. The last briefing was on April 27.

Donald J. Trump’s first foreign trip as U.S. President is now history, but the repercussions are likely to be felt for years to come. [...] Trump disrespected the entire NATO alliance system, broke with the rest of the G-7 on the Paris climate change agreement and, in general, behaved boorishly. Given the chance to welcome NATO’s newest member, Montenegro, Trump pushed its prime minister aside to claim his own front row spot for the traditional “family photo” of NATO summit leaders.