Coming Up on 'This Week': Presidential Candidate Herman Cain

WASHINGTON, Sept. 30, 2011— -- Fresh off his Florida straw poll win and well-received debate performances, businessman Herman Cain has risen to third place in the Republican presidential race behind front-runners Mitt Romney and Rick Perry in the latest national polling. This Sunday, Cain speaks to "This Week" anchor Christiane Amanpour about whether he can keep the momentum going and break into the top tier of the GOP presidential contest.

Does the conservative radio host-turned-candidate have a shot at the nomination? What prescriptions does the former Godfather's Pizza CEO have for the ailing economy? And can he compete with President Obama? GOP presidential candidate Herman Cain, Sunday on "This Week."

Also: Will he or won't he? New Jersey Gov. Chris Christie is getting an earful from top Republicans prodding him to get in the race, but is he ready to run for his party's nomination?

Our powerhouse roundtable, with George Will, ABC News senior White House correspondent Jake Tapper, Republican strategist Nicolle Wallace and Democratic strategist Mark Penn, debate the Cain surge, Gov. Rick Perry's slump and Gov. Chris Christie's big decision. And we'll get special insights on what is happening in Christie's inner circle from a reporter who has covered him closely, Matt Katz of the Philadelphia Enquirer and author of the blog, "Christie Chronicles."

Plus, another business leader says he can't wait for Washington. Starbucks CEO Howard Schultz wants to boycott political contributions and says American business leaders need to step up to shake the economy out of its crisis of confidence. The coffee king joins the "This Week" roundtable and shares his ideas to fix Washington and bring America back.

And finally, this week marks 10 years since America's longest war began in Afghanistan. Senior foreign affairs correspondent Martha Raddatz will have a special report from the country, as well as the latest on the deadly strike against a top al Qaeda leader in Yemen.