VIDEO : VMAs: Kanye West's Video Vanguard Speech Tops Twitter and Facebook's Biggest Moments

Kanye West's 13-minute, rambling Michael Jackson Video Vanguard acceptance speech was the biggest moment of the 2015 MTV Video Music Awards, according to conversations on Facebook and Twitter. The rapper finished his remarks by announcing that he would run for president in 2020, part of what drove the moment to generate the most conversations on Twitter, according to worldwide activity three hours before and during the VMAs. West touched on a number of topics in his speech, first reflecting on his memorable 2009 interruption of Taylor Swift, who presented West with his award.