In the largest known political advocacy donation in U.S. history, industrialist Barre Seid funded a new group run by Federalist Society co-chair Leonard Leo, who guided Trump’s Supreme Court picks and helped end federal abortion rights.
By Andrew Perez, The Lever, and Andy Kroll and Justin Elliott, ProPublica
An elderly, ultra-secretive Chicago businessman has given the largest known donation to a political advocacy group in U.S. history — worth $1.6 billion — and the recipient is one of the prime architects of conservatives’ efforts to reshape the American judicial system, including the Supreme Court.

Through a series of opaque transactions over the past two years, Barre Seid, a 90-year-old manufacturing magnate, gave the massive sum to a nonprofit run by Leonard Leo, who co-chairs the conservative legal group the Federalist Society.
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