Dallas Mavericks owner Mark Cuban on Friday offered Donald Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE $10 million to interview the GOP presidential nominee about his policy proposals.

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Cuban tweeted to Trump, “$10 [million] to the charity of YOUR choice if you let ME interview you for 4 hrs on YOUR policies and their substance.”

.1) @realDonaldTrump $10mm to the charity of YOUR choice if you let ME interview you for 4 hrs on YOUR policies and their substance. — Mark Cuban (@mcuban) September 16, 2016

In a series of subsequent tweets, Cuban laid out conditions for the proposed interview, including a prohibition on mentioning Hillary Clinton Hillary Diane Rodham ClintonJoe Biden looks to expand election battleground into Trump country Biden leads Trump by 12 points among Catholic voters: poll The Hill's Campaign Report: Biden goes on offense MORE.

2) @realDonaldTrump groundrules are that you cant mention the Clintons or discuss anything other than the details and facts of yr plans and — Mark Cuban (@mcuban) September 16, 2016

3) @realDonaldTrump and no one else is in the room to help. Just me, you and a broadcast crew.



Deal ? — Mark Cuban (@mcuban) September 16, 2016

Cuban initially offered the money as a donation to Trump's charity of choice. But later he said he'd be willing to write a check to Trump himself so that he “can keep the money rather than give it to charity.”

4)@realDonaldTrump I'll add an option.If you need it, I'll write you the check and you can keep the money rather than give it to charity — Mark Cuban (@mcuban) September 16, 2016

In the last of the tweets, Cuban cited Trump’s pitch to black voters, asking him, “What do you have to lose?”