"Who cares?" Trump said when asked about the DNA test. When pressed on the once-promised $1 million payment, Trump responded: "I didn't say that. You better read it again."

In fact, Trump did promise $1 million, during a July rally, but only if the test showed she was "an Indian."

At a rally in July, Trump said: "And we will say, 'I will give you a million dollars, paid for by Trump, to your favorite charity if you take the test and it shows you're an Indian ... we'll see what she does. I have a feeling she will say no but we will hold it for the debates."

Later Monday, Trump said he did not owe Warren the money, saying that was contingent on her winning the nomination.

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