U.S. and Iranian negotiators made progress in talks on Tuesday, moving closer to a framework agreement to end the war, according to two American officials. The discussions involved Vice President Vance, White House envoy Steve Witkoff, and senior adviser Jared Kushner, who exchanged draft proposals with Iranian counterparts and mediators. A U.S. official described the teams as "getting closer" through phone calls and backchannel communications.

This diplomatic push comes with a critical deadline: the current ceasefire is set to expire on April 21. The two long-time adversaries have been attempting to bridge substantial differences with the assistance of Pakistani, Egyptian, and Turkish mediators. A Pakistani delegation led by Army commander Field Marshal Asim Munir arrived in Tehran on Wednesday to continue the talks.

Despite the reported progress, officials and sources familiar with the mediation cautioned that a final deal is not guaranteed. The substantial differences between Washington and Tehran remain a significant hurdle. A second U.S. official confirmed progress was made but did not specify the nature of the remaining gaps.

The involvement of multiple regional mediators suggests a complex, multi-party effort to stabilize the situation. If successful, a framework could outline a path to a more permanent cessation of hostilities. Failure to reach an agreement before the ceasefire lapses risks a return to open conflict.

U.S. officials stated their desire for a deal, noting that parts of the Iranian government also appear willing. The challenge, as one official put it, is "to get the whole of government" in Tehran on board with any final agreement.