Chicagoans gave their famously foul-mouthed mayor something to curse about on Tuesday. Mayor Rahm Emanuel, the former White House chief of staff, failed to win more than 50 percent of the vote in a five-way race, forcing him into an April 7 runoff election. The mayor outspent the other candidates and was endorsed by President Obama and the city’s business leaders, but only recieved 45.4 percent of the vote. Emanuel was criticized for closing 50 under-performing city schools in his first term, and accused of focusing on the Loop and the North Side rather than the city’s minority neighborhoods. He’ll face off against Cook County commissioner Jesus “Chuy” Garcia, who took 33.9 percent of the vote and is backed by the Chicago Teachers Union.