Booker DeWitt is challenged by many enemies in his quest to escape Columbia with Elizabeth in BioShock Infinite. They are divided in two factions opposing each other for the control of the city: the Founders, who champion American exceptionalism and xenophobia and support Father Comstock and his prophecy, and the Vox Populi, an anarchist-communist workers' union movement led by Daisy Fitzroy whose ideology progressively became more violent and extreme as they clashed against their opponents.