CNN And Reagan Library Host GOP Presidential Primary Candidates Debate

Donald Trump, president and chief executive of Trump Organization Inc. and 2016 Republican presidential candidate, from left, Jeb Bush, former governor of Florida and 2016 Republican presidential candidate, and Scott Walker, governor of Wisconsin and 2016 Republican presidential candidate, participate in the Republican presidential debate at the Ronald Reagan Presidential Library in Simi Valley, California, U.S., on Wednesday, Sept. 16, 2015. TAfter a friendly round of introductions, the second Republican presidential debate quickly plunged into clashes that shifted from policy to the personal, with more politically experienced insiders trying to gain an advantage against the front-runner at center stage: Donald Trump. Photographer: Max Whittaker/Pool via Bloomberg