Biden joined by former presidents Obama, Bush, Clinton at wreath laying ceremony
President Joe Biden and Vice President Kamala Harris participate in a wreath laying ceremony at the Tomb of the Unknown Soldier at Arlington National Cemetery in Arlington, Va. Former President Barack Obama and his wife Michelle, former President George W. Bush and his wife Laura and former President Bill Clinton and his wife former Secretary of State Hillary Clinton look on. (AP Photo/Evan Vucci)
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