How Does Trump’s Iran Deal Compare to Obama’s From 2015?

President Donald Trump signed a “memorandum of understanding” with Iran to wind-down four months of war, but critics, including politicians and media figures who typically support the president, say it concedes too much to a radical Iranian regime. So how does it stack up with the Obama administration’s 2015 deal with Iran which Trump attacked on the campaign trail and then repealed as president? NBC’s Keir Simmons reports in this week’s Sunday Focus.