An incentive plan to keep the Chicago...

An incentive plan to keep the Chicago White Sox from moving to Florida was narrowly approved in the Illinois General Assembly after a sponsor warned, “We’re about to turn the lights out in Comiskey Park.”

Final passage came on a 60-55 vote in the House after a tense roll call during which Gov. James R. Thompson worked the House floor in search of votes.

The measure, which could cut $60 million from the team’s cost of occupying a new state-funded stadium, earlier cleared the Senate on a 30-26 vote.