[A CA Guy]

But there are pre-stated rules to the contest saying contestants must have X number of the voters as a percentage of the vote or they would be wasting the people's time and they would be an interruption representing to fringe a view.
That is why on a national scale the KKK, Green Party or Libertarians don't make it to the debate.

The rules for everybody are stated BEFORE the contest begins and is applied to all equally.
If someone had 15%, they could debate I guess.

[Triple]

So, it is ok to use government funding in a way that discriminates against people for their political views - as long as those people 'poll' at a rate less than 15%?

That is a very shaky limb on which you are perched.