When Ron Paul left the House of Representatives, this created a vacuum. Libertarians only had two representatives over the last 60 years: Howard Buffett and Ron Paul. That is not a lot of representatives. These days, the conservative movement seems as bereft of leaders in Congress as the libertarians are. We hear soundbites from Marco Rubio, and Rand Paul is also quoted from time to time, but there is no one who has the conservatives' ear in the way that Jesse Helms did a generation ago.
