John Kerry

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Secretary of State John Kerry testifies on Capitol Hill in Washington, Tuesday, April 8, 2014, before the Senate Foreign Relations Committee to discuss his budget and the status of diplomatic hot spots. Lawmakers' questions focused on Russia, Ukraine, Iran and Syria. Kerry, a former chairman of the Foreign Relations Committee, threatened Russia with tougher economic sanctions if it fails to back down from its chaotic involvement in Ukraine. (AP Photo/J. Scott Applewhite)