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BERLIN, GERMANY - MAY 25: Former President of the United States of America Barack Obama gestures after a discussion on democracy at Church Congress on May 25, 2017 in Berlin, Germany. Up to 200,000 faithful are expected to attend the five-day congress in Berlin and Wittenberg which is celebrating the 500th anniversary of the Reformation. (Photo by Steffi Loos/Getty Images)
BERLIN, GERMANY - MAY 25: Former President of the United States of America Barack Obama gestures after a discussion on democracy at Church Congress on May 25, 2017 in Berlin, Germany. Up to 200,000 faithful are expected to attend the five-day congress in Berlin and Wittenberg which is celebrating the 500th anniversary of the Reformation. (Photo by Steffi Loos/Getty Images)

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CNN's Michelle Kosinski was in Berlin at the historic Brandenburg Gate to gauge the reaction of the crowd to former President Obama's speech.

CNN on the ground: Obama back in the limelight

CNN's Michelle Kosinski was in Berlin at the historic Brandenburg Gate to gauge the reaction of the crowd to former President Obama's speech.