President Obama gives his inaugural address after taking the oath of office Monday. Brendan Smialowski/AFP/Getty Images hide caption

itoggle caption Brendan Smialowski/AFP/Getty Images

As a second-term president, Barack Obama necessarily generates less excitement than he did as a newcomer. Above, flags flew during his 2009 inauguration. Eric Purcell/FlickrVision via Getty Images hide caption

itoggle caption Eric Purcell/FlickrVision via Getty Images

President Obama taking the oath of office today on the steps of the Capitol. First Lady Michelle Obama held the two Bibles on which he placed his hand. Alex Wong/Getty Images hide caption

itoggle caption Alex Wong/Getty Images