Stage lineup for tonight's prime-time GOP debate
During tonight's prime-time debate among Republican presidential contenders, real estate mogul Donald Trump once again will be center stage, this time flanked by retired neurosurgeon Ben Carson and former Florida Gov. Jeb Bush. Former Hewlett-Packard CEO Carly Fiorina, the only woman in the GOP field, will also be on the main stage tonight for the first time. The debate will be televised on CNN.