Jerrold Nadler, a Democratic congressman from New York (Lauren Victoria Burke / AP) President Obama, in a letter aimed at congressional Democrats wavering over supporting the nuclear deal with Iran, says the U.S. will maintain all options, including military force, should Iran pursue nuclear weapons. “Should Iran seek to dash toward a nuclear weapon, all of the options available to the United States — including the military option — will remain available through the life of the deal and beyond,” Obama wrote in the letter obtained by The New York Times.