President Barack Obama departs the Diplomatic Reception Room of the White House to board Marine One on the South Lawn, Sunday, Sept. 30, 2012. Chief of Staff Jack Lew, left, and National Economic Council Director Gene Sperling are pictured in the foreground.

President Barack Obama departs the Diplomatic Reception Room of the White House to board Marine One on the South Lawn, Sunday, Sept. 30, 2012. Chief of Staff Jack Lew, left, and National Economic Council Director Gene Sperling are pictured in the foreground.