US President challenges naysayers to offer alternatives, rebuts criticism of nuclear pact
US President Barack Obama on Wednesday confronted head on the growing criticism towards the Iran nuclear deal, and challenged opponents to offer an alternative.
22:36 How Trump’s first 100 days compares to past presidents1
22:12 The predictable unpredictability of Donald J. Trump21
22:06 The Obamas face the paid-speaking circuit — and all the questions that come with it5
00:57 Obama Balances Civic-Minded Side With the Lure of a $400,000 Speech21