Washington and Tehran seem determined to revive the deal that freezes Iran’s nuclear program, despite domestic criticism on both sides and the apparent sabotage of an Iranian facility.

Iran has built considerable political clout in Iraq since the fall of Saddam Hussein’s regime. Its wide sphere of influence could be expanding, raising domestic tensions and alarming U.S. policymaker…

Iran’s new negotiating team signaled few compromises as it resumed talks over freezing its nuclear program amid reports of new uranium enrichment efforts.

Any sharp drawdown of U.S. forces in Iraq grants Iran a golden opportunity to expand its influence there and threatens to inflame sectarian tensions.

Iran has officially supported Russia’s invasion of Ukraine, but new complications in talks to revive the 2015 nuclear deal signal differences between Moscow and Tehran.