Can you name this donor? He co-founded Silicon Valley’s first great corporation. He funded and befriended every Republican President from Nixon to George H.W. Bush. His decisive actions helped save two conservative think tanks, the Hoover Institution in the 1950s and the American Enterprise Institute in the 1980s. In 1992 he declared, “the Democratic Party has been the party of socialism since President Roosevelt’s term,” and it “is indentured to union labor.” Your last clue: The foundation named for him—America’s seventh largest—is a pillar of the liberal philanthropic establishment.