As John Edwards joins a growing number of presidential hopefuls, he faces a changing political landscape. Political authors discuss the challenges ahead for him and everyone else running for office in 2008.

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Harvard economist and behind-the-scenes presidential adviser John Kenneth Galbraith died Saturday at age 97. NewsHour Economics Correspondent Paul Solman talks with biographer Richard Parker and reviews an earlier interview he had with Galbraith.

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U.S. and world leaders bid farewell to former Pres. Ronald Reagan at Washington's National Cathedral Friday in an official state funeral celebrated with military precision and patriotic pageantry.

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Family members and government officials finalized plans Monday for a week-long series of tributes and services in honor of former Pres. Ronald Reagan, who died Saturday from Alzheimer's-related complications at the age of 93.

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Ronald Reagan, 40th president of the United States and arguably one of the most popular presidents in recent memory, succumbed to complications stemming from advanced Alzheimer's disease on Saturday.

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