Highlights from CNBC's GOP undercard debate

Sen. Lindsey Graham (R-S.C.), former New York Gov. George Pataki, former Sen. Rick Santorum (R-Pa.), and Louisiana Gov. Bobby Jindal faced off Wednesday evening during the CNBC Republican debate for low-polling candidates.

Graham said that under President Obama, "we're being walked all over because our commander-in-chief is weak in the eyes of our enemies," and he would tell his foes abroad to pick between his "clenched fist and an open hand." Pataki declared that he cut taxes more than anyone else on stage, and would get rid of loopholes that cost Americans "$1.4 trillion a year." Jindal said he is against the government mandating paid maternity leave, and thinks the country is on the "path toward socialism." Santorum announced multiple times that he believes families in the United States need to be strengthened, and wants Americans to receive better vocational training.

Graham also had some zingers for Hillary Clinton and Bernie Sanders, and Pataki warned that the GOP must stop questioning "science that everyone accepts."

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