The problem with Kucinich or Gravel is a practical and very prohibitive one. They aren't going to be able raise the money or votes to win, and they're certainly not going to be able to win a party nomination. So their only choice will be to run as independents, and of course that means they won't win. Reality is reality. And history is very clear on how that works for candidates like those two. Idealism is great, but folks who know how politics in this country works need to go ahead and begin narrowing their candidates from the field of really viable nominees.