The debate airs live on CNBC starting at 8pm ET. Will the GOP field tread lightly on the Cain allegations, or will someone go for the jugular? Will Mitt Romney's spending and entitlements plan draw attacks or attaboys? Will Newt Gingrich reiterate his Global Warming/Pelosi couch commercial mea culpa? Follow the Townhall/HotAir editorial team's live coverage of tonight's twists and turns below, and don't be bashful about posting your own instant reactions in the comments section.
Stay tuned to The Tipsheet after the debate for my comprehensive wrap-up and analysis.
Guy Benson is Townhall.com's Political Editor. Follow him on Twitter @guypbenson. He is co-authors with Mary Katharine Ham for their new book End of Discussion: How the Left's Outrage Industry Shuts Down Debate, Manipulates Voters, and Makes America Less Free (and Fun).
Author Photo credit: Jensen Sutta Photography