Republican presidential nominee Donald Trump campaigned in Ohio Thursday and announced that he will accept the results of November’s election—under one condition.

Donald Trump: “I want to make a major announcement today. I would like to promise and pledge to all of my voters and supporters and to all of the people of the United States that I will totally accept the results of this great and historic presidential election, if I win.”

Trump’s remarks came one day after the final presidential debate, when he refused to say if he will accept the election results. President Obama and other political leaders have sharply criticized Trump’s remarks.

President Barack Obama: “That is dangerous, because when you try to sow the seeds of doubt in people’s minds about the legitimacy of our elections, that undermines our democracy.”