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LAS VEGAS, NV - DECEMBER 14:  Republican presidential candidate Donald Trump speaks during a campaign rally at the Westgate Las Vegas Resort & Casino on December 14, 2015 in Las Vegas, Nevada. Donlad Trump is campaigning in Las Vegas a day ahead of the final GOP debate.  (Photo by Justin Sullivan/Getty Images)
LAS VEGAS, NV - DECEMBER 14:  Republican presidential candidate Donald Trump speaks during a campaign rally at the Westgate Las Vegas Resort & Casino on December 14, 2015 in Las Vegas, Nevada. Donlad Trump is campaigning in Las Vegas a day ahead of the final GOP debate.  (Photo by Justin Sullivan/Getty Images)

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Trump: Obama doesn't want to work too hard

GOP presidential candidate Donald Trump talks to CNN about President Obama's executive action on gun control.

Trump: Obama doesn't want to work too hard

GOP presidential candidate Donald Trump talks to CNN about President Obama's executive action on gun control.