Throughout 1997, further controversial elements emerged with "Raw Is War" and WWF programming. Notable angles included Bret Hart and his Hart Foundation declaring war on the United States lifestyle, Paul Bearer delivering an intense promo on June 30 claiming that The Undertaker's brother Kane was still alive after surviving a house fire twenty years prior and claiming that The Undertaker had started it, gang warfare between the Nation of Domination, The Disciples of Apocalypse and Los Boricuas erupting in the summer, Stone Cold Steve Austin's building feud with WWF executives, and primarily Vince McMahon (who was now known as the legit owner of the WWF), and the emergence of D-Generation X (DX) as an anti-establishment group. On November 17, Vince McMahon was interviewed by Jim Ross about the infamous Montreal Screwjob at the Survivor Series, and said to the world that "Bret screwed Bret" and claimed that Hart was a tragic figure on that night, thus starting the Mr. McMahon gimmick. Hart had then left for WCW immediately following the Survivor Series event.