By a nearly 2 to 1 margin, Americans support the notion of striking a deal with Iran that restricts the nation’s nuclear program in exchange for loosening sanctions, a new Washington Post-ABC News poll finds. But the survey — released hours before Tuesday’s negotiating deadline — also finds few Americans are hopeful that such an agreement will be effective. Nearly six in 10 say they are not confident that a deal will prevent Iran from developing nuclear weapons, unchanged from 15 months ago, when the United States, France, Britain, Germany, China and Russia reached an interim agreement with Iran aimed at sealing a long-term deal. Overall, the poll finds 59 percent support an agreement in which the United States and its negotiating partners lift major economic sanctions in exchange for restrictions on Iran’s nuclear program. Thirty-one percent oppose a deal. Support outpaces opposition across nearly all demographic and political […]