Koch network will campaign against proposed Hillsborough transportation tax.

The network of advocacy groups tied to billionaire industrialists Charles and David Koch has helped derail several plans to raise taxes for public transit over the past few years, including ones in Nashville and Little Rock.

The anti-tax, small government group now has it sights set on Hillsborough County. The group announced Tuesday that it will campaign against the one percent sales tax plan put on the November 6 general election ballot by citizen’s group All for Transportation. If approved by voters, the 30-year tax would start in January and raise about $280 million per year.

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