The President and Vice President were sworn into office Sunday - and they will do it again Monday. Our Washington Bureau reporter Erin Billups has a closer look at the ceremonies.
WASHINGTON, D.C. -- "...and will to the best of my ability, preserve, protect, and defend the Constitution of the United States. So help me God."
"Congratulation's Mr. President."
And with that, President Barack Obama was officially sworn in to his second term in office. Chief Justice John Roberts administered the oath of office. Vice President Joe Biden was sworn in earlier Sunday by Justice Sonia Sotomayor.
The 20th Amendment of the Constitution requires the president be sworn into office by noon on January 20th.
American University History Professor Allan Lichtman said, "So the tradition has become, the President takes the oath on a Sunday so that the Constitution is fulfilled. But in fact all of the festivities take place on Monday to avoid the Sabbath."
It's the seventh time inauguration day has fallen on a Sunday; the last time was during Ronald Reagan's second inauguration. Sunday, the President used the First Lady's family Bible for the private ceremony. Monday he will take the oath with his hand once again placed on Abraham Lincoln's bible and will also use Martin Luther King, Jr.'s Bible.
Lichtman said, "The inauguration celebration also falls on Martin Luther King Day, and many of the goals that Martin Luther King Jr. espoused are also similar to the goals of this administration as well."
While Sunday's swearing-in was very brief, Monday's inaugural ceremony promises to be full of all of the traditional pomp and circumstance. But it will likely have a different tone than 2009 now that Obama has a record under his belt. Still, Lichtman, a political science history professor, believes already supporters are starting to once again see the man who has the ability to engage the nation.
Lichtman said, "I do think you've seen a new Obama emerging from his re-election. He has more swagger; he has more boldness."