Iran Nuclear Deal Talks at Dead End, Biden Admin Tells Congress in Classified Briefing

The Biden administration’s negotiations with Iran over a revamped version of the 2015 nuclear deal have hit a dead end, jeopardizing the likelihood of a new agreement, senior U.S. officials informed Congress during a classified briefing.

A deal seemed within reach earlier this month as U.S. officials presented Iran with a proposal that would significantly unwind economic sanctions and provide the regime with somewhere near one trillion dollars over the lifetime of the agreement. Iran, however...