In addition to being responsible for much of the worst domestic repression, Iran’s Islamic Revolutionary Guard Corps (IRGC) manages Hizballah and similar terrorist proxies and sends its troops to fight in Iraq, Syria, and elsewhere. On Monday, the White House officially designated the IRGC as a terrorist group—a move, Eli Lake writes, with real consequences:

Under the current circumstances, it seems unlikely, writes Dennis Ross, that Washington will succeed in negotiating a return to the 2015 nuclear agreement with Tehran—and even if it does, it is even more unlikely that the Biden administration will be able to make good on its promise to negotiate a “longer and stronger” version of the deal. Ross thus suggests a simple way to make clear to the Islamic Republic the risks of continuing to pursue a nuclear weapon: