Declaring "our work begins today", President Barack Obama vowed to "finish what we started" four years ago as hundreds of thousands of inauguration-goers gathered on the historic National Mall in anticipation of his oath-taking for a second term.
"Let's go," Obama tweeted Monday morning as he began the day of inaugural celebrations.
Obama, along with his family and Vice President Joe Biden, began his day with a church service at St. John's Episcopal Church. Known as "The Church of the Presidents", St. John's is located just across from the White House on the other side of Lafayette Park. Pew 54 is known as "the president's pew" and is reserved for the commander in chief whenever he attends.