The last Republican debate on CNN went on for three hours; three painful, slogging hours that made people cry for an end to the spectacle of presidential candidates ineffectually pawing at Donald Trump. The most hurt person, however, seems to be Trump himself: on Thursday, Trump and Dr. Ben Carson reportedly demanded that the next debate be shorter than two hours—commercials included—or they would consider walking.

Update (Friday, 8:15 A.M.): Trump announced on Friday that CNBC had agreed to the terms.

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Politico reported that Corey Lewandowski, Trump’s campaign manager, also insisted that the Republican National Committee, which is organizing the debate, allow people to have opening and closing statements. (CNBC, which is hosting the debate on October 28, reportedly decided to forgo those statements.) But most important, he wanted to keep it short—likely because Trump noticeably flagged after three hours of standing.

Trump and Carson made their case in a letter sent to CNBC, which was obtained by NBC News.

“Mr. Trump and Dr. Carson do not, and will not, agree to appear at a debate that is more than 120 minutes long including commercials breaks,” the letter said. “Further, the debate must include opening and closing statements from all the candidates.”