During President Obama's first 100 days, it seems that White House photographer Pete Souza has been at his side for virtually every waking moment.
Below, a huge slideshow featuring 300 of the best behind-the-scenes photos of Obama's young presidency. Mouse over the top of the slideshow to see more options, and click on a photo to view its caption.
How will Donald Trump’s first 100 days impact YOU? Subscribe, choose the community that you most identify with or want to learn more about and we’ll send you the news that matters most once a week throughout Trump’s first 100 days in office. Learn more