Trump’s Shadow Looms Over Fading Iran Nuclear Talks

WASHINGTON — Many factors are to blame for the dying prospects of reviving the 2015 Iran nuclear deal. But perhaps nothing has hobbled the Biden administration’s efforts more than the legacy of President Donald J. Trump.

It was Mr. Trump, of course, who withdrew in 2018 from the nuclear pact brokered with Iran by the Obama administration, calling it “the worst deal ever.”

But Mr. Trump did more than pull the plug. U.S. officials and…