Texas GOP Senate Primary a Test For the Tea Party

Lt. Gov. David Dewhurst and Solicitor General Ted Cruz face off today for the second time.

After a long, expensive and fiercely fought battle, the Texas GOP Senate primary will come to a close today, as voters cast ballots in the runoff between Lt. Gov. David Dewhurst and former Solicitor General Ted Cruz in a test for the Tea Party.

Dewhurst, 66, and Cruz, 41, are facing off for the second time in their race to win the GOP nomination for Senate in the open race to fill the seat left vacant by Kay Bailey Hutchison's retirement. The two men battled for the first timein the state's presidential and congressional primary May 29.