Libertarian Party presidential candidate Gary Johnson and Green Party hopeful Jill Stein have failed to quality for the first planned U.S. presidential debate on Sept. 26, the Commission on Presidential Debates said on Friday.

The commission, citing the averages the various candidates have achieved in selected polls, confirmed that Republican Donald Trump and Democrat Hillary Clinton had met the criteria.

It also said that the vice presidential running mates of the two leading candidates were the only two to qualify for the vice presidential debate set for Oct. 4.