Rupert Murdoch, 92, announced he's stepping down as chairman of Fox and News Corp, the two companies that have made him a force in global media. WSJ's Amol Sharma discusses how Murdoch became a media tycoon and what comes next for his empire. Further Reading: -Rupert Murdoch to Step Down as Chair of Fox and News Corp After Seven-Decade Career  Further Listening: -Behind the Breakup of Fox and Tucker Carlson  -Dominion Voting Systems vs. Fox News  Learn more about your ad choices. Visit megaphone.fm/adchoices