CTU-backed candidates lose 8 of 13 contested races

As Illinois' election results roll in, candidates endorsed by the Chicago Teachers Union are losing most of their contested races.

Mar. 18, 2026 at 3:19am

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Candidates backed by the Chicago Teachers Union lost most of the races Tuesday in which they faced competitors. With nearly 90% of votes counted, CTU-endorsed candidates trailed in eight of 13 races in which they were challenged. CTU didn't just endorse candidates — the union was a major donor. CTU endorsed another 13 candidates who had no primary opponent.

Why it matters

This election marks a setback for the political influence of the Chicago Teachers Union, which has been a major force in local and state politics. The losses suggest voters may be looking for alternatives to CTU-backed candidates, potentially signaling a shift in the political landscape.

The details

Cook County Board President Toni Preckwinkle, who won re-election, didn't seek CTU's endorsement. Right before the primary, CTU favorability hit a record-low among likely Chicago voters.

  • The election results were reported on March 18, 2026.

The players

Chicago Teachers Union

A labor union representing teachers in the Chicago public school system, which has been a major political force in local and state elections.

Toni Preckwinkle

The Cook County Board President who won re-election without seeking the CTU's endorsement.

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The takeaway

The losses of CTU-backed candidates in this election suggest a potential shift in the political landscape, with voters seeking alternatives to the union's influence. This could have significant implications for future elections and the balance of power in Illinois politics.