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Why the GOP will fight Trump until the bitter end

Our prediction: The Republican Party will not surrender and let Trump be its nominee without a protracted fight.

Republican presidential candidate Donald Trump speaks during a rally at Iowa Central Community College, Nov. 12, 2015, in Fort Dodge, Iowa. (Photo by Charlie Neibergall/AP)
Republican presidential candidate Donald Trump speaks during a rally at Iowa Central Community College, Nov. 12, 2015, in Fort Dodge, Iowa.AP

Chuck Todd

Chuck Todd is NBC News' chief political analyst and the former moderator of "Meet The Press."

Mark Murray