.

The document, which has been circulating on Capitol Hill and in the White House, says the president should declare to Congress next month that the deal is no longer in the national security interest of the United States. Then the president would make clear his readiness to hit Iran with a “de-facto global economic embargo” if it failed to meet certain conditions over a 90-day period, including opening military sites to international inspectors.

“This would be a 21st century financial version of [John F.] Kennedy’s Cuba quarantine,” according to a copy of the proposal obtained by Foreign Policy. The embargo would involve reimposing sanctions lifted under the deal, as well as additional measures including restrictions on oil exports.