Former Cook County Commissioner and Chicago Teachers Union lobbyist Brandon Johnson will be sworn in as the 57th mayor of Chicago May 15. Here’s what Chicagoans should know about his political ties, policy proposals and prospects.

While total Chicago voter turnout hit a high April 4, in-person voting on Election Day reached the lowest level in Chicago mayoral runoff history. Most Chicagoans voting did so early or by mail.

Chicago Board of Elections stats show nearly 57% Chicagoans voted early or by mail in the primary election Feb. 28. Almost three times more voters cast their ballot by mail than during the 2o19 primary.

Winning 51% of the vote, Cook County Commissioner and Chicago Teacher Union lobbyist Brandon Johnson defeated Paul Vallas in the April 4 mayoral runoff, according to news outlets. Paul Vallas concedes.