Why it matters: The Biden administration is still refining its strategy about how to resurrect the 2015 deal that President Trump backed out of in 2018, but it wants to work with allies to slow Iran’s effort to enrich uranium and prevent an arms races in the Middle East.

Principals committee meetings — held in the Situation Room and attended by the secretaries of Defense and State and other key national security players — are designed to discuss policy at the highest level before presenting recommendations to the president.

They are preceded by a meeting of the deputies from all the national security agencies. On Wednesday, deputy national security adviser Jon Finer led one such session focused on the Middle East.

One of the main action items Friday is whether to push toward returning to the nuclear deal before the June presidential elections in Iran or wait until after, a source familiar with the issue said.