Linda Door protested outside the U.S. Supreme Court as it began hearing arguments on the constitutionality of the Affordable Care Act in March 2012. Carolyn Kaster/AP hide caption

itoggle caption Carolyn Kaster/AP

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

She's saying goodbye, for now at least: Rep. Michele Bachmann, R-Minn., has announced she won't seek re-election in 2014. (File photo from Jan. 4, 2012, when she left the Republican presidential race.) Jim Young /Reuters /Landov hide caption

itoggle caption Jim Young /Reuters /Landov