Fate of Berlin Wall should be a teaching moment for Trump, current Berlin mayor says

Europe woke up to the news of Donald Trump being elected president of the United States on Nov. 9. The day was also the 27th anniversary of the fall of the Berlin Wall; an irony that did not go unnoticed by many Europeans. Trump's campaign pledge to build a wall on the U.S. border with Mexico had drawn harsh criticism. […]

Source: http://www.washingtonpost.com/blogs/worldviews/wp/2017/01/27/fate-of-berlin-wall-should-be-a-teaching-moment-for-trump-current-berlin-mayor-says/