WASHINGTON – JUNE 23: Secretary of State Hillary Clinton walks into the White House on June 23, 2010 in Washington, DC. U.S. President Barack Obama announced that he is replacing Gen. Stanley McChrystal as top commander of the U.S. Force in Afghanistan with Gen. David Petraeus, after an article quoting Gen. McChrystal disparaging the Obama Administration was published in Rolling Stone magazine. (Photo by Mark Wilson/Getty Images)