The Chicago Teachers Union voted to call off its strike, which has kept kids out of class for seven days, The Wall Street Journal's Caroline Porter reports. School resumes tomorrow -- sorry kids. Chicago Mayor Rahm Emanuel's spokeswoman said it was "a fair, honest and transformative contract that will benefit our children and teachers in ways that have never been seen in the Chicago Public Schools." The strike was a tricky situation for President Obama, because Emanuel was once his chief of staff and teachers unions are a major part of his base. The teachers' major focus was the use of test scores as 40 percent of their job evaluation. The union says it still has some issues to negotiate with the city, the Chicago Tribune reports. The union has some weeks to look over its contract, and judging by "publicly released summaries of the contract, however, it's unclear where concessions are made in some provisions," the Associated Press says.