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DALLAS, TX - SEPTEMBER 14:  Republican presidential candidate Donald Trump speaks during a campaign rally at the American Airlines Center on September 14, 2015 in Dallas, Texas. More than 20,000 tickets have been distributed for the event.  (Photo by Tom Pennington/Getty Images)
DALLAS, TX - SEPTEMBER 14:  Republican presidential candidate Donald Trump speaks during a campaign rally at the American Airlines Center on September 14, 2015 in Dallas, Texas. More than 20,000 tickets have been distributed for the event.  (Photo by Tom Pennington/Getty Images)

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Can Trump be stopped?

CNN's John King breaks down the delegate game and if Cruz and Rubio can afford to wait until the March 15 primaries in order to stop Trump delegate gains.

Can Trump be stopped?

CNN's John King breaks down the delegate game and if Cruz and Rubio can afford to wait until the March 15 primaries in order to stop Trump delegate gains.