Mark Zuckerburg's friend, Democratic Mayor Pete Buttigieg, joins 2020 presidential race. Democratic Mayor Pete Buttigieg joins 2020 presidential race SOUTH BEND, Ind. (AP) — Democrat Pete Buttigieg, the 37-year-old mayor of South Bend, Indiana, says he’s forming an exploratory committee for a 2020 presidential bid. “The reality is there’s no going back, and there’s no such thing as ‘again’ in the real world. We can’t look for greatness in the past,” Buttigieg says in a video that includes before-and-after footage of South Bend, a Rust Belt city once described as “dying.” “Right now our country needs a fresh start,” he says. Why was Facebook CEO Mark Zuckerberg hanging out with South Bend Mayor Pete Buttigieg and Elkhart firefighters? Facebook CEO Mark Zuckerberg spent Saturday just hanging out in northern Indiana and, of course, posting his experience on social media. Zuckerberg toured South Bend with Mayor Pete Buttigieg, posting two Facebook Live videos as they drove around the city chatting about the challenges of revitalizing the community. Zuckerberg's spokeswoman, told the South Bend Tribune, that the the Facebook chief knew Buttigieg previously and said they were friends.