Before President Obama delivers his farewell address to the nation tonight, take a look back at some of his most memorable speeches — from his keynote during the 2004 Democratic National Convention to his 2012 election victory speech. More on Obama's legacy: http://nbcnews.to/2iRPwUV | NBC News

Former Presidents Obama, Clinton and Bush have arrived at the inauguration ceremony at the US Capitol. Follow the latest updates: cnn.it/360yrzk | CNN

65K views · 2.2K reactions | Former President Barack Obama says, "We have to worry when one of our major political parties is willing to embrace a way of thinking about our democracy that would be unrecognizable and unacceptable even five years ago or a decade ago." https://cnn.it/2Rxlv01 | CNN | Facebook

3.9K views · 220 reactions | “If you're walking down the right path and you’re willing to keep walking, eventually you'll make progress.” - Barack Obama, born on this day in 1961. | Biography | Facebook