U.S. Secretary of State John Kerry delivers a statement about the use of chemical weapons in Syria at the Department of State last week. Chip Somodevilla/Getty Images hide caption

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President Obama speaks in the White House Rose Garden on Saturday, joined by Vice President Biden, to announce that he wants congressional approval to attack Syria. Nicholas Kamm/AFP/Getty Images hide caption

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President Obama speaks about Syria from the Rose Garden at the White House on Saturday. Jim Watson/AFP/Getty Images hide caption

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