Donald Trump

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Republican presidential candidate Donald Trump speaks during a campaign event at the Myrtle Beach Convention Center on Tuesday, Nov. 24, 2015, in Myrtle Beach, S.C. (AP Photo/Willis Glassgow) ** FILE **

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Republican presidential candidate Donald Trump waves during a campaign event at the Myrtle Beach Convention Center on Tuesday, Nov. 24, 2015, in Myrtle Beach, S.C. (AP Photo/Willis Glassgow) **FILE**

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Donald Trump appeared to benefit most from the new focus on national security. He hardened his lead among Republican primary voters nationally and in early-voting New Hampshire, while retaking the lead from Mr. Carson in Iowa, home to the country's first nominating contest. (Associated Press)

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The crowd surges to greet Republican presidential candidate Donald Trump after he speaks during a campaign stop Saturday, Nov. 21, 2015 in Birmingham, Ala. (AP Photo/Eric Schultz)

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Donald Trump, in his campaign promises, deems it expedient to form a "deportation force" to boot out most of the illegal immigrants living in the U.S. (Associated Press)

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Republican presidential candidates Ben Carson, left, and Donald Trump talk before the start of the CNN Republican presidential debate at the Ronald Reagan Presidential Library and Museum on Wednesday, Sept. 16, 2015, in Simi Valley, Calif. (AP Photo/Mark J. Terrill) ** FILE **

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Illustration on Dr. Ben Carson and Donald Trump by Paul Tong/Tribune Content Agency

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Republican presidential candidate Donald Trump speaks during a campaign stop at the Burlington Memorial Auditorium in Burlington, Iowa, in this Oct. 21, 2015, file photo. (AP Photo/Charlie Neibergall, File)

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Republican presidential front-runner Donald Trump has been receiving unsolicited cash donations from those eager to cast their votes for him in the 2016 election despite the billionaire declaring from the get-go he would self-finance his own campaign with his significant wealth. (Associated Press)

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Money machine: Republican presidential front-runner Donald Trump has been receiving unsolicited cash donations from those eager to cast their votes for him in the 2016 election despite the billionaire declaring from the get-go he would self-finance his own campaign with his significant wealth. (Associated Press)

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Republican presidential candidate Donald Trump speaks Monday, Oct. 19, 2015, in Anderson, S.C. (Ken Ruinard/The Independent-Mail via AP)

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Republican presidential candidate Donald Trump speaks Monday, Oct. 19, 2015, in Anderson, S.C. (Ken Ruinard/The Independent-Mail via AP) ** FILE **

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For all his claims of being unscripted, Donald Trump has developed a go-to stump speech that is carrying him through his appearances, giving him space to digress about whatever is on his mind but with enough structure to make sure he covers the basics. (Associated Press)

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Tim Constantine reports on Huma Abedin's appearance before the House Select Committee on Benghazi, CNBC revising details of the next GOP debate to ensure Donald Trump and Ben Carson would participate, and a new concert event by Roger Waters.

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Republican presidential candidate Donald Trump managed to steal some attention even on the day of the first Democratic presidential debate. He agreed to host "Saturday Night Live" on NBC next month and live-tweeted the Democratic face-off. (Associated Press)

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Republican presidential candidate Donald Trump speaks during a No Labels Problem Solver convention Monday, Oct. 12, 2015, in Manchester, N.H. (AP Photo/Jim Cole) ** FILE **

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FILE - In this Sept. 30, 2015, file photo, Republican presidential candidate, businessman Donald Trump speaks during a campaign stop in Keene, N.H. Trump is well known in many parts of the world. He’s known in the Himalayas, far from any sign with his name on it. And in the Middle East, Africa and beyond. He’s clearly a recognized name worldwide, which is not to say he’s a loved one. (AP Photo/Steven Senne, File)