Trump discussed the million-dollar wager at a July rally in Montana, while stumping in the state against vulnerable Senate incumbent Jon Tester. Giving himself some wiggle room, he said that if he faced Warren in the 2020 election, he would publicly demand she take a DNA test while on television at a presidential debate.
"We will very gently take that kit, and we will slowly toss it, hoping it doesn't hit her and injure her arm, even though it only weighs probably 2 ounces," Trump said at the rally. "And we will say, 'I will give you a million dollars to your favorite charity, paid for by Trump, if you take the test and it shows you're an Indian.'"