It's pretty astonishing that Barack Obama was elected president with just three years of experience as a junior senator from Illinois (though he did serve on the Illinois state legislature). But if you look at pictures of Obama before he was elected, his charismatic presence is undeniable. Moments from the campaign trail in 2007 are particularly intimate and revealing.
As we reflect on Obama's legacy and prepare for his exit, we looked back at his trajectory to the White House. While you might be used to Obama's face after eight years, we're guessing you haven't seen these 21 photos of Obama before he took office.