Biden scrambles for a Plan B with Iran nuclear deal on life support

U.S. President Joe Biden listens to a speech from Cambodia Prime Minister Hun Sen during the ASEAN - U.S. summit in Phnom Penh, Cambodia, Saturday, Nov. 12, 2022. (AP Photo/Vincent Thian)The global push to constrain Iran’s nuclear program has entered uncharted territory as the U.S. and its allies signal that negotiations with Tehran are all but dead, and it’s unclear whether the Biden administration has a viable Plan B to keep Iran’s theocratic regime from getting a nuclear bomb that the agreement was supposed to prevent.

The sudden collapse of the high-stakes multilateral talks comes as Iran deepens its diplomatic and military ties with Russia, stoking fears that perhaps the Kremlin may…