In a letter to Trump private attorney Rudy Giuliani, his liaison to the commission, the commission writes that it is committed to its existing schedule of three debates between Trump and his Democratic challenger, Joe Biden, saying it would consider adding a fourth debate only if both sides agree to it.

“If the candidates were to agree that they wished to add to that schedule, the Commission would consider that request but remains committed to the schedule of debates it has planned as reflected in the attached release,” the commission wrote in a letter obtained by The Associated Press.