More than 50 members of the Democratic National Committee urged President Joe Biden’s administration in a letter on Monday not to hesitate to lift sanctions on Iran in exchange for Tehran’s return to compliance with the 2015 nuclear agreement.

The letter, signed by Congresswoman Barbara Lee, Minnesota Attorney General, former Congressman Keith Ellison and 51 other prominent Democratic party members, called on the administration not to acquiesce to Republican lawmakers’ opposition to a return to the deal, known as the Joint Comprehensive Plan of Action.

“We commend you for pledging to return to the JCPOA and for beginning a multilateral diplomatic process with other world powers to return all sides to compliance with the accord through the compliance-for-compliance formula,” the letter read. “The issue of who goes first should not become an obstacle.”

It went on, “Moreover, lifting Trump’s bad-faith sanctions — which he explicitly imposed on Iran in order to make a return to the JCPOA next-to-impossible — should not be treated as a concession to Iran, but rather as an effort to restore US credibility and enhance American security.”