There have been quite a few articles (not opinion pieces) showing that he doesn't seem to follow up on issues he puts forward strongly.

And this was before he was running for president.

I think you have to believe in something before you can get it to move into action.

Dean was defeated when he first put forth his health care plan, but unlike Clinton, he didn't give up. He kept going back to the legislature, getting this, getting that, getting something else until he had everyone under 18 years covered.

You can't buy persistence!