President Barack Obama has been sworn in for a second four-year term.
Chief Justice John Roberts administered the oath of office Sunday in the Blue Room of the White House. First lady Michelle Obama, daughters Sasha and Malia, and a few reporters witnessed the ceremony.
Obama will take the oath again on Monday during a public swearing-in at the Capitol before hundreds of thousands of people.
Earlier in the day, Obama and Vice President Joe Biden laid a wreath at Arlington National Cemetery.
Their visit came shortly after Biden was sworn in to a second term.
Together Obama and Biden placed the wreath on a stand, then placed their hands on their hearts as a bugler played taps.
Obama and his family also attended services Sunday morning in honor of Martin Luther King Jr. at the historic Metropolitan African Methodist Episcopal Church in Washington, which celebrates its 175th anniversary this year.
The same church hosted prayer services before the inauguration of former President Bill Clinton and Vice President Al Gore.