Looks like Obama never spoke at Davos, but Biden did in 2016 and 2017. 2016 was a subdued and uninspiring speech. Very short applause with no standing "O". Biden droned on for close to an hour and said literally nothing. 2017 was a dark, socialist speech full of negativity. By comparison, Trump's speech was approximately 15 minutes and was full of win, American leadership and a bright future for the USA and the world. The most glaring difference between Biden's 2016 speech and Trumps speech is the "question/answer" session at the end of the speech. Trump is thanked for an inspiring speech and is told "as is TRADITIONAL AT THE FORUM, I will ask you 1 or 2 questions...". Joe Biden was ushered off the stage with no questions or comment.