Green Party presidential candidate Jill Stein, left, and vice presidential candidate Cheri Honkala sit at the entrance to Hofstra University, Hempstead, N.Y., Tuesday, Oct. 16, 2012, after being informed that they wouldn't be able to enter and participate in the second presidential debate. (AP Photo/Mary Altaffer)

Analysis: To Understand The Presidential Primaries, Recognize The Impact Of Movements

Movements on the right and left are changing the political culture. Their impact can be seen in the Democratic and Republican primaries, but the media does not report it.