Sean Hubbard has been in the race for Senator longer than any other candidate, having started his campaign in January, 2011, right when Sen. Hutchison made her retirement official. Hubbard is easily the youngest candidate running for Senate at 30 years old, but he has been involved in politics for a decade, starting as a volunteer for Congressional campaign. In 2008, he worked with Obama Dallas to coordinate outreach efforts, and develop the Obama Dallas Field Plan. He lives in the Dallas area, where he grew up. Here’s the interview:
See also this BOR profile of Hubbard.