The fate of a fragile 2015 nuclear deal between Iran and world powers hinges on the result of the U.S. presidential election in November, not a planned U.S. bid this week to trigger a return of all U.N. sanctions on Tehran, said several Iranian officials. When Iran agreed to sanctions relief in return for curbs on its nuclear program, Tehran warned that it would no longer stick to the deal if any of the parties sparked a so-called snapback of sanctions at the U.N. Security Council, a backstop included in the accord in case Iran stopped complying. U.S. President Donald Trump’s administration plans this week to use that snapback provision, even though it quit the deal in 2018 and the move is opposed by the remaining parties to the accord – Germany, Britain, France, Russia, China and Iran. But despite Tehran’s declaration five years ago, […]