Excerpts from recent editorials in the United States and abroad: ___ May 31 The Wall Street Journal on an advancing civil nuclear deal with Saudi Arabia No U.S. President has done more to confront Iran ’s nuclear program than Donald Trump, and one reason is to avert a nuclear arms race in the world’s most volatile region. Vice President JD Vance made that case recently, yet the Trump Administration is simultaneously advancing a civil nuclear deal with Saudi Arabia that would abandon long-held proliferation safeguards. Why? A State Department letter to Sen. Ed Markey (D., Mass.) dated May 18 says…