Republican presidential candidates, former New York Gov. George Pataki, left, former Pennsylvania Sen. Rick Santorum, second from left, Louisiana Gov. Bobby Jindal, second from right, and Sen. Lindsey Graham, R-S.C., appear during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif.
Republican presidential candidates, former New York Gov. George Pataki, left, former Pennsylvania Sen. Rick Santorum, second from left, Louisiana Gov. Bobby Jindal, second from right, and Sen. Lindsey Graham, R-S.C., appear during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. Mark J. Terrill AP
Republican presidential candidates, former New York Gov. George Pataki, left, former Pennsylvania Sen. Rick Santorum, second from left, Louisiana Gov. Bobby Jindal, second from right, and Sen. Lindsey Graham, R-S.C., appear during the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. Mark J. Terrill AP

The ‘other’ debate reveals fault lines in the GOP

September 19, 2015 07:36 PM

UPDATED September 19, 2015 07:51 PM

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