it was through Obama's intelligent diplomacy that such a deal was enabled.
this brought Iran back into the open world. it enabled Iran to trade and engage with many more nations than it was able under the former punitive sanctions. and IT WAS WORKING. Iran had accepted the need for IAEA officials to monitor their uranium plans, though we'll never know just how complete was the IAEA assessment......
Trump's angry "withdrawal" cost the world and this new war is literally of Trump's making.