Chicago Teachers Union president Karen Lewis says the threat of a teachers strike this year is "very high."

Chicago Teachers Union president Karen Lewis says the threat of a teachers strike this year is "very high."

Lewis made the comments during a taping of WLS-890 AM's "Connected to Chicago with Bill Cameron." The radio show airs at 2 p.m. Sunday.

The district's last teachers strike was in 1987. A sweeping set of education reforms signed by the governor in June, though, makes it tougher for teachers to strike. The union now must reach a higher threshold vote of 75 percent of members to strike. And the reforms lengthen the timeline, requiring steps that would take four to six months before