Facebook's Mark Zuckerberg makes surprise stop in South Bend, drives around with Mayor Pete

Zuckerberg launched two live Facebook videos from a car Saturday afternoon as Buttigieg drove through South Bend. They toured the city as Buttigieg explained its recent history, his background and how he ascended to the mayor's office.

(See the videos here)

Zuckerberg and Buttigieg also talked about the history of Studebaker, the mayor's "1,000 houses in 1,000 days" and Smart Streets projects, as well as efforts to lure new businesses to South Bend and revitalize downtown.

At one point during the drive, Buttigieg snuck in a joke about the At&T Building downtown.

"Nobody can tell me what's in there," he said. "If you ask for a tour, they'll say no."