Not this year.
Obama was too busy with his vacation in Chicago and sent Vice President Joe Biden instead.
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Above shows Vice President Joe Biden laying a wreath at the Tomb of the Unknowns, on Memorial Day, Monday, May 31, 2010, at Arlington National Cemetery in Arlington, Virginia.
Mr. Obama was to preside over a separate holiday observance near Chicago later Monday.
Obama will, however, be back in time to honor Paul McCartney at the White House.
Link here and here.