Obama comes full circle in farewell speech

President Obama will say farewell Tuesday night to a nation he helped transform during his eight years in the White House. Riding high in the polls but just days away from handing over the reins to a Manhattan mogul who has vowed to dismantle much of his legacy, Obama has chosen to make his final address as commander-in-chief in the city where he launched his unlikely and boundary-breaking political career ? Chicago. There Obama, who won the White House for the first time in 2008 on the message of "hope and change," will tell the supporters who have been with him from the start to take heart and not despair as he lays out what White House spokesman Josh Earnest is calling a "forward-looking" vision for America.