The U.S. Supreme Court handed President Barack Obama a major victory, upholding the key part of his controversial health care plan in a 5-4 decision. The so-called 'individual mandate' requires Americans to purchase heath insurance or face a financial penalty.
Reaction to Supreme Court's Decision on Health Care Reform Law

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House Minority Leader Nancy Pelosi relays the breaking news to her staff on Capitol Hill in Washington.

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Supporters of the Affordable Healthcare Act celebrate in front of the Supreme Court after the court upheld the legality of the law.

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Supporters gathered in front of the Supreme Court before the court's announcement.

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Tea Party supporter William Temple protests against President Barack Obama's 2010 health care overhaul outside the Supreme Court.