The American Principles Project (APP) is a socially conservative 501(c)(4) political advocacy group founded in 2009 by Robert P. George, Jeff Bell, and Francis P. Cannon. It is chaired by Sean Fieler. It is led by Terry Schilling, the son of the late former U.S. Representative Bobby Schilling. The organization has an affiliated super PAC, the American Principles Project PAC, which receives significant funding from Richard and Elizabeth Uihlein. It also has an affiliated 501(c)(3) nonprofit think tank, the American Principles Project Foundation.