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"This president has tried to find a way to blame everybody or anybody for everything and leadership requires that you stand up and take a position, provide clarity, and take responsibility," former Secretary of Defense Donald Rumsfeld told Greta Van Susteren on Fox News.
Earlier on Wednesday, President Obama told reporters in Sweden, "First of all, I didn't set a red line. The world set a red line" on Syrian President Bashar Assad's use of chemical weapons.