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Boehner replaces his chief of staff

House Speaker John Boehner has shifted his senior staff and moves his chief of staff since 2010, Barry Jackson, to a new role and replaces Jackson with Mike Sommers.

Sommers moves up from the position of deputy chief of staff for leadership operations since 2011.

Aides say this "staff transition comes as Congress looks ahead to perhaps the most consequential end-of-session legislative period in modern history."

Barry Jackson, who also served in the Bush White House, will take on a new focus of strategic planning.