By Nova Safo, CNN
(CNN) – On Tuesday night presidential candidates will lock horns in a debate in Chicago. The participants are not Republican or Democrat. They're third party candidates.
At tonight's debate: Jill Stein (Green Party), Gary Johnson (Libertarian Party), Virgil Goode (Constitution Party) and Rocky Anderson (Justice Party), all of whom have received little attention during this election.
They're working to change that by pushing a message that focuses on issues that they believe are being ignored by Democrats and Republicans.
Third parties are setting themselves apart as the place for disaffected voters from both the left and the right, said Stephen Caliendo, a professor of political science at North Central College near Chicago:
[2:59] “In a multiparty system, you think of western democracies in Europe for instance, there will be smaller parties that represent very narrow slices. But in a two-party system, it has to be big tent, it has to be broad. So there aren’t a lot of people talking about some of the issues that aren’t as salient.”
The debate Tuesday night is the brainchild of Christina Tobin, president of Free And Equal, the organization sponsoring the debate.
Tobin will be moderating along with Larry King, who volunteered his time. She hopes the debate will expose voters to new perspectives:
[5:24] “This debate is going to be more of a discussion of unity across the spectrum of what do we have in common, uniting against the establishment. We may be on the left, we may be on the right, but gosh we’re all against the patriot act, the drug war.”
Editor's Note: What do you want to hear from the third-party candidates? Listen to the complete story above and join the conversation below.