The GOP Debate’s Three Defining Moments

The latest Republican presidential debate will be remembered for three exchanges. Which one voters find most important will determine Thursday night's winner in South Carolina.
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WATCH: TRUMP QUESTIONS CRUZ’S CITIZENSHIP, GOP HOPEFULS EYE UPCOMING DEBATE

Plus more on Hillary Clinton and how she ranks against Bernie Sanders in New Hampshire. Also, what's going on with the FBI expanding the investigation of Hillary Clinton's e-mails? Watch and find out more.

FBI Ramps Up Hillary Clinton E-Mail Investigation

“The agents are investigating the possible intersection of Clinton Foundation donations, the dispensation of State Department contracts and whether regular processes were followed,” an anonymous FBI source told Fox News.

TRUMP STRESSES NEED TO WIN IOWA RACE

Republican presidential front-runner Donald Trump, locked in a tight race with Texas Senator Ted Cruz in Iowa, on Saturday stressed the importance of winning the state that holds the first U.S. nominating contest of the 2016 election season.
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WATCH: Establishment Battle – GOP Candidates Fight It Out in Early States

Note how the commentator said, "the so-called establishment Republicans." These people will never get it. These people are desperate for the establishment. Watch the commentary.
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Germany: New Year’s Attacks -Women Sexually Attack By Mid Eastern Men

Stuart Varney gives commentary and wonders what will Hillary Clinton say now. Since Hillary Clinton has criticized Donald Trump for saying he would not allow Muslims into the U.S. until we figure this out.

Trump criticized for campaign ad showing ‘southern border’ using footage of Morocco [VIDEO]

Republican presidential candidate Donald Trump’s new television ad showing dozens of people swarming over a border fence is being criticized by a prominent fact-checker for using footage from a Spanish autonomous city that shares a border with Morocco.
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WATCH: Donald Trump Slams Clinton, Says She & Pres Obama Created ISIS

Former Gov. of New Hampshire and former Chief of Staff to President G.H.W. Bush, John Sununu weighs in.
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WATCH: DONALD TRUMP CUTS LOOSE ON ATTACKS ON BILL AND HILLARY CLINTON

Trump said yesterday that Bill Clinton is one of the "greatest abusers in the world." Trump brings up the Clinton's past. Watch analysis.
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WATCH: Trump Vs. The Clintons – The War On Women

On Stuart Varney