“Russia may do Biden a favor by killing the Iran deal,” Nahal Toosi and Stephanie Liechtenstein, Politico, March 14, 2022.  “At least two members of the U.S. negotiating team have left in recent months over concerns about the talks’ direction. Ariane Tabatabai and Richard Nephew are political appointees, not career staffers, but are well-regarded experts on Iran. People familiar with the pair’s thinking said they thought the United States was leaning toward giving up too much in sanctions relief and that a restored deal would not be strong enough.”