Tea Party: Past, Present and Future

GOP presidential candidates faced a Tea Party crowd last night. We hear what they said and ask about Tea Party influence in deciding the nominee of a divided Republican Party. Also, the Taliban launches attacks on the US Embassy in Kabul, and on his way to New York for the UN General Assembly, Iran's Ahmadinejad announces the release of two American hikers imprisoned two years ago.

Banner image: Protesters hold signs outside the building where the Republican presidential debate sponsored by CNN and the Tea Party Express is being held at the Florida State fairgrounds on September 12, 2011 in Tampa. Photo by Joe Raedle/Getty Images