Eric Trump, the son of American Republican presidential candidate, Donald Trump on Sunday said the father will “100 percent” accept the results of the U.S. election if it is fair.

“I think what my father is saying is, ‘I want a fair election,’” Eric said on ABC’s This Week.

“If it’s a fair outcome, he will absolutely accept it. There’s no question about that.”

Trump campaign manager Kellyanne Conway acknowledged on Sunday that Trump trails rival Hillary Clinton in national and key battle ground state opinion polls.

“We are behind,” she said on NBC’s Meet the Press, adding that Clinton had “tremendous advantages,” including a larger campaign war chest that she can use to buy television commercials.