'Yes we did' _ Obama bids farewell in nostalgic last speech

CHICAGO — President Barack Obama bid farewell to the nation Tuesday in an emotional speech that sought to comfort a country on edge over rapid economic changes, persistent security threats and the election of Donald Trump.

Forceful at times and tearful at others, Obama's valedictory speech in his hometown of Chicago was a public meditation on the many trials the U.S. faces as Obama takes his exit. For the challenges that are new, Obama offered his vision for how to surmount them, and for the persistent problems he was unable to overcome, he offered optimism that others, eventually, will.

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