Watching Republican Presidential Debate 2015: Start Time, TV Channel, Radio Info For Fourth GOP Debate
The eight top-polling Republican candidates who took the stage in Milwaukee Tuesday for their fourth debate face significant pressure to build support, three months out from the first voting in Iowa.
The candidates appearing in the primetime debate Tuesday are former Hewlett-Packard CEO Carly Fiorina, former Florida Gov. Jeb Bush, U.S. Sen. Ted Cruz of Texas, U.S. Sen. Marco Rubio of Florida, businessman Donald Trump, retired neurosurgeon Ben Carson, U.S. Sen. Rand Paul of Kentucky and Ohio Gov. John Kasich.