At the Ronald Reagan Library near Los Angeles last night, CNN moderators were determined to generate conflict. Eleven Republican candidates for president responded with almost three hours of political theater. The big question: could anybody lay a hand on front-runner Donald Trump? What's changed in a campaign that's still just getting started? We hear a range of opinions.
The Showdown in Simi Valley
Matthew Dowd - ABC News - @matthewjdowd, Molly Ball - national political correspondent, TIME - @mollyesque, Douglas Heye - Harvard Institute of Politics - @DougHeye, James Poulos - The Week / The Federalist - @jamespoulos, David Rothkopf - FP Group - @djrothkopf