A new Joe Biden ad shows world leaders laughing at Trump and includes footage from this week's NATO summit in London.
Says Biden in the ad: “The world sees Trump for what he is. Insincere, ill-informed, corrupt, dangerously incompetent, and incapable in my view of world leadership. And if we give Donald Trump four more years, we'll have a great deal of difficulty of ever being able to recover America's standing in the world, and our capacity to bring nations together.”