Billionaire investor Paul Singer is an important backer of rightwing “pro-Israel” advocacy in the United States who has financed a long list of neoconservative organizations. He was also one of the more generous supporters of Donald Trump’s presidential election campaign. Singer and like-minded mega-donors Sheldon Adelson and Bernard Marcus, all of whom have supported a hardline on Iran, account for over $40 million in pro-Trump political money. Trump’s decision to pull out of the Iran nuclear deal, quipped one journalist, “may have been exactly what [they] paid for when they threw their financial weight behind Trump.”