THREAD: Cordelia Scaife May, an heiress to the Gilded Age Mellon-family fortune, was the single biggest donor to the anti-immigration movement: $180 million. @mmcintire and I unearthed never-before-seen documents for an unprecedented view of her thinking. https://t.co/BkUEQ1241W— Nicholas Kulish (@nkulish) August 14, 2019