The polling figures were changed when Perot ran. It was lower but after seeing the damage that was done both parties agreed to block anyone else from debating. If anyone polled the 15 percent needed they would probably raise it to 35 percent and give a big fuck you to the rest of America.
Yet they conveniently leave out that Obama got only 30% of eligible voters in the election and McCain only got around 20%. No no, polls from CNN and Pew matter oh so much more than what the turnout shows.