Donald Trump apparently believes that he could shoot up midtown Manhattan and still maintain his popularity.

In talking about how loyal and smart his supporters are,during a speech at Dordt College in Sioux City, Iowa, Trump said: "I could stand in the middle of 5th avenue and shoot SOMEBODY and I wouldn’t lose voters. It's like incredible." The Republican front runner  "fired" an imaginary gun at the audience as he said it.

Trump campaign volunteer Brandon Fokkema told ABC News he understood what Trump was saying but "he probably could have worded it a little better."

Trump, who later tweeted that he was "very well received,"  was responding to criticism from the conservative National Review, which published several essays critical of him. Several of the writers endorsed Republican rival Sen. Ted Cruz.

Trump brought up the prospect of suing Cruz, suggesting the rival candidate, born in Canada to an American mother, might not be eligible to run for president.

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