SYRACUSE, N.Y. -- Some local voters are unhappy that two presidential candidates were left out of Monday night's debate.

Monday protesters marched outside Hillary Clinton's campaign headquarters in Syracuse. They believe that Green Party Candidate Jill Stein and Libertarian Party Candidate Gary Johnson should have been included in the debate.

The Commission on Presidential Debates sets up the rules. It's a non-profit, non-partisan organization that has sponsored every presidential debate since 1988.

Protesters claim the exclusion of third party candidates limits voters' choices.

"[In total] 100 million people will watch this debate tonight [Monday night] and they won't even know that Johnson and Stein are on the ballot in their state. They have no way of hearing it because this is the thing most people pay attention to, so this is a real shame about our democracy at this point," said Onondaga County Green Party Chair Howie Hawkins.

A recent poll by USA Today and Suffolk University showed that 76 percent of voters wanted third party candidates to be included in the debates.