Smoke hasn’t cleared from the ash heap of Hillary Clinton’s Midwestern firewall. Democrats will need a candidate who can win in Michigan, Ohio, and Pennsylvania to win back the White House in 2020. Hence the interest in a Rust Belt mayor.

South Bend Mayor Pete Buttigieg is the latest Democrat to join the presidential race. With rust on his resume and a pick-up truck in his driveway, the 37-year-old Midwestern millennial seems like a possible answer to Clinton’s past mistakes.