Wrap: The measure would require all future sales tax increases to be for a specific purpose and only allow the zoo tax increase to be an eighth of one percent.

St. Louis County Representative Marsha Haefner said the measure would help keep the zoo updated and free.

Opponents said a sales tax increase would hurt poor Missourians and St. Louisans already paying property taxes to the zoo.

The measure allows the zoo to charge admission fees for entrance into new buildings and events if a sales tax is not passed.

Reporting from the state Capitol, I'm Jack Morrisroe.

Wrap: St. Louis County Representative Tracy McCreery said an increase in sales taxes would hit vulnerable Missourians the hardest.

Proponents said the measure would limit future tax increases and go directly to the zoo.

The sales tax increase would be allowed to go to a vote of St. Louis County and City citizens. The measure would also require all future sales tax increases to be for a specific purpose and only allow a zoo tax increase to be one-eighth of one percent.

Reporting from the state Capitol, I'm Jack Morrisroe.