Not much happened during the Cleveland presidency. For one, government did not do much in the Gilded age, so not doing much was on purpose. Secondly, the Democratic party was composed of a diverse group of people, political machines and Mugwumps, free traders and protectionists, Gold Standardists and unlimited coinagers, and finally not to mention southern segregationists. One wrong move and the party would fracture, so the safest thing to do was nothing.
Historically Speaking 