May 30th, 2011
09:22 AM ET
CNN's Ed Henry and Barbara Starr report that President Obama on Monday will announce the nomination of Army Gen. Martin Dempsey to replace Adm. Mike Mullen as Joint Chiefs Chairman, according to a source familiar with the plans.
Obama will also name Adm. James Winnefeld, the current head of the U.S. Northern Command, to serve as vice chairman, according to the source.
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