Sen. Rand Paul (R-Ky.) greets supporters during a tea party rally in front of the U.S. Capitol in June. Paul was a rising star in the tea party movement this year, filibustering a CIA nomination in March. Mark Wilson/Getty Images hide caption

itoggle caption Mark Wilson/Getty Images

Sen. Ted Cruz's anti-Obamacare strategy seemed to fall flat Tuesday with many of his fellow Senate Republicans. They urged him to back down out of concern over a possible government shutdown next week. C-SPAN.org screen shot hide caption

itoggle caption C-SPAN.org screen shot

Members of the college group Young Americans for Freedom roll up Ronald Reagan posters to hand out at CPAC in National Harbor, Md. on Friday. Jacquelyn Martin/AP hide caption

itoggle caption Jacquelyn Martin/AP

Gov. Rick Perry rules the roost at the Texas Republican Convention in Fort Worth on June 7. But his endorsement of Lt. Gov. David Dewhurst fell flat this week as Tea Party fave Ted Cruz crushed Dewhurst in a GOP runoff for U.S. Senate. LM Otero/AP hide caption

itoggle caption LM Otero/AP