Rahm Emanuel won re-election Tuesday as voters in Chicago’s first mayoral runoff decided that, despite his brusque management style, the former White House chief of staff was best equipped to deal with the many dire challenges facing the nation’s third-largest city. Emanuel was forced to campaign furiously across the city to beat Cook County Commissioner Jesús “Chuy” Garcia after failing to capture a majority against four other candidates in a February election. The mayoral runoff was the first since the city changed the way it conducts elections about 20 years ago. […] Emanuel raised far more money than Garcia, plastered...