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White House press secretary Jay Carney closes his briefing book as President Barack Obama makes a surprise to the Brady Press Briefing Room of the White House in Washington, Friday. May 30, 2014, to announce that Carney will be stepping down in June. The president announced Carney's departure in a surprise appearance at in the White House press briefing room Friday. He said principal deputy press secretary Josh Earnest will take over the job. (AP Photo/Susan Walsh) ( Obama Press Secretary )

White House press secretary Jay Carney listens as President Barack Obama announces that Carney is leaving, Friday, May 30, 2014, during the daily press briefing in the Brady Press Briefing Room of the White House in Washington. The president announced Carney's departure in a surprise appearance at in the White House press briefing room Friday. He said principal deputy press secretary Josh Earnest will take over the job. (AP Photo/Susan Walsh) ( Obama Press Secretary )

President Barack Obama gives White House press secretary Jay Carney a hug after announcing that Carney will step down later next month, during a surprise visit to the Brady Press Briefing Room of the White House, Friday, May 30, 2014. The president announced Carney's departure in a surprise appearance at in the White House press briefing room Friday. He said principal deputy press secretary Josh Earnest will take over the job. (AP Photo/Susan Walsh) ( Obama Press Secretary )

White House press secretary Jay Carney pauses as he speaks during his daily news briefing at the White House in Washington, Thursday, May 29, 2014. Carney discussed the Department of Veterans Affairs and Veterans Affairs Secretary Eric Shinseki and other topics. (AP Photo/Carolyn Kaster) ( Obama )

President Barack Obama, followed by White House press secretary Jay Carney, arrives in the Brady Press Briefing Room of the White House in Washington, Wednesday, May 21, 2014, following his meeting with Veterans Affairs Secretary Eric Shinseki. Seeking to head off a growing furor over veterans' health care, President Barack Obama declared Wednesday that allegations of misconduct at Veterans Affairs hospitals are "dishonorable" and will be not be tolerated by his administration.   (AP Photo/Susan Walsh) ( Obama Veterans Affairs Care )

White House press secretary Jay Carney speaks during the daily briefing at the White House in Washington, Tuesday, May 6, 2014. Carney was asked about the situation in Ukraine and on climate change. (AP Photo/Susan Walsh) ( Carney White House )

National Security Adviser Susan Rice, left, and White House press secretary Jay Carney walk from Marine one to the White House, in Washington, Wednesday, May 28, 2014, as they return with President Barack Obama where he delivered the commencement address at the United States Military Academy at West Point, New York. (AP Photo/Carolyn Kaster) ( Obama )

White House press secretary Jay Carney speaks during the daily briefing at the White House in Washington, Tuesday, May 6, 2014. Carney was asked about the situation in Ukraine and on climate change. (AP Photo/Susan Walsh) ( Carney White House )

President Barack Obama walks towards the Oval Office of the White House in Washington, Thursday, May 15, 2014, with White House press secretary Jay Carney, right, and Deputy Chief of Staff Anita Decker Breckenridge. (AP Photo/Manuel Balce Ceneta) ( Obama )

White House press secretary Jay Carney speaks during his daily news briefing at the White House in Washington, Thursday, May 29, 2014. Carney discussed the Department of Veterans Affairs and Veterans Affairs Secretary Eric Shinseki and other topics. (AP Photo/Carolyn Kaster) ( Obama )

White House press secretary Jay Carney speaks during his daily news briefing at the White House in Washington, Tuesday, May 20, 2014. (AP Photo/Pablo Martinez Monsivais) ( Obama )

Members of President Obama's staff, from left, Senior Adviser Valerie Jarrett, press secretary Jay Carney, White House Political Director David Simas, and White House advisor Dan Pfeiffer, look over a collection of World Series championship rings while visiting the Baseball Hall of Fame in Cooperstown, N.Y., Thursday, May 22, 2014. Obama visited the museum to highlight tourism and steps to help spur international visits to the 50 states. Obama said the overall U.S. economy and local businesses will benefit if it isn't a hassle for people from other countries to visit the U.S. and spend money at its hotels, restaurants, tourist destinations and other businesses. (AP Photo/Susan Walsh) ( Obama )

FILE - This May 19, 2014 file photo shows White House Press Secretary Jay Carney listens during his daily news briefing at the White House in Washington. Carney is leaving his post and his No. 2 is taking over. President Barack Obama announced Carney’s departure in a surprise appearance at in the White House press briefing room Friday. He said principal deputy press secretary Josh Earnest will take over the job. (AP Photo/Pablo Martinez Monsivais, File) ( Obama Press Secretary )

White House press secretary Jay Carney closes his briefing book as President Barack Obama makes a surprise visit to the Brady Press Briefing Room in Washington, Friday, May 30, 2014, to announces during the daily press briefing that Carney will be stepping down in June. The president announced Carney's departure in a surprise appearance at in the White House press briefing room Friday. He said principal deputy press secretary Josh Earnest will take over the job. (AP Photo/Susan Walsh) ( Obama Press Secretary )