US President Barack Obama (R) walks from the Propylaia with Eleni Banou, Ministry of Culture director of Ephorate of Antiquities for Athens, during a tour of the Acropolis on November 16, 2016 in Athens, Greece. Obama will sketch out his vision of democracy at a time of mounting global populism, seeking to soothe European allies anxious over a Donald Trump presidency. / AFP / Brendan Smialowski (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
US President Barack Obama looks at the Erechtheion during a tour of the Acropolis on November 16, 2016 in Athens, Greece. Obama will sketch out his vision of democracy at a time of mounting global populism, seeking to soothe European allies anxious over a Donald Trump presidency. / AFP / Brendan Smialowski (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
US President Barack Obama (L) walks with Professor Dimitrios Pandermalis, President of the Acropolis Museum, during a tour of the Acropolis Museum, on November 16, 2016 in Athens, Greece. Obama will sketch out his vision of democracy at a time of mounting global populism, seeking to soothe European allies anxious over a Donald Trump presidency. / AFP / Brendan Smialowski (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
US President Barack Obama looks at an exhibit during a tour of the Acropolis Museum on November 16, 2016 in Athens, Greece. Obama was on November 16 wrapping up the Greek leg of a farewell European trip with a visit to the Acropolis and an eagerly-awaited speech on democracy before heading to Berlin. On his final visit to Europe as president, Obama has chosen Greece, the "cradle of democracy", as the place to deliver a speech addressing the uncertainties that have led to the rise of populists like Donald Trump. / AFP / Brendan Smialowski (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
US President Barack Obama looks at an exhibit during a tour of the Acropolis Museum on November 16, 2016 in Athens, Greece. Obama was on November 16 wrapping up the Greek leg of a farewell European trip with a visit to the Acropolis and an eagerly-awaited speech on democracy before heading to Berlin. On his final visit to Europe as president, Obama has chosen Greece, the "cradle of democracy", as the place to deliver a speech addressing the uncertainties that have led to the rise of populists like Donald Trump. / AFP / Brendan Smialowski (Photo credit should read BRENDAN SMIALOWSKI/AFP/Getty Images)
