Sunday Open Thread: Why Has Ron Paul Flatlined ?

James Joyner takes a look at the national polling trends asks this question:

Could it be that hard-core libertarians are just a relatively small group? That, despite being organized and enthusiastic, there aren’t enough of them to elect a president?

To the extent that the campaign has never done a good job of reaching out beyond this core group of supporters, not to mention the fact that events since November have contributed significantly to a drop in support from libertarians who might otherwise have supported the campaign, I’ve got to say that the answer to both those questions is yes.

Thoughts ?