Ignatius Donnelly (1831–1901) was an American writer, reformer, and politician who was a leading figure in the Populist Party. Donnelly started his political career as a Republican and spent time as a Greenbacker, a Granger, a Democrat, and an Independent before turning to the Populist Party in the 1890s. As an organizer of the Minnesota Farmers’ Alliance, Donnelly helped stir support for populism, and in 1892 he drafted the party’s Omaha Platform. Donnelly supported William Jennings Bryan, a Populist-leaning Democrat, in the presidential...