Coming Up on 'This Week"...Hillary Clinton and Mahmoud Ahmadinejad

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It has been a busy week on two international fronts – the Middle East and Iran. And "This Week with Christiane Amanpour" goes to Jerusalem and New York for two big exclusive interviews.

As Secretary of State Hillary Clinton goes to Jerusalem for a second round of Mideast peace talks, she sits down with "This Week" anchor Christiane Amanpour for an exclusive interview. Can a breakthrough be achieved? Is a lasting peace within reach? And what can be done to keep Iran from destabilizing the region? Christiane Amanpour, one-on-one in Jerusalem with Secretary Clinton – a "This Week" exclusive.

Then, Iran's President Mahmoud Ahmadinejad takes the world stage at the U.N. General Assembly in New York and he comes to "This Week" for a Sunday exclusive interview. Will the provocative leader change course on Iran's nuclear ambitions? Will new economic sanctions against Iran have any impact? And will Iran free two American hikers who remain captive there? President Mahmoud Ahmadinejad, only on "This Week."

Plus, a special look at Tea Party politics on our powerhouse roundtable. In the wake of Christine O'Donnell's surprising win, Delaware State Republican Chairman Tom Ross joins George Will, David Sanger of the New York Times, and Peter Beinart of the Daily Beast to discuss what impact the Tea Party will have on the midterms. Will it help or hurt the GOP's chances in the fall? How will it shape the Republican presidential run in 2012? That and all the week's politics Sunday on "This Week."

You won't want to miss it.