News outlets report Gill was booked into the Williamson County jail Tuesday evening. Williamson County Sheriff's Office spokeswoman Sharon Puckett says his bond is $170,000 - the amount he owes in child support.
His ex-wife sued in January for the cost of supporting their children, including medical care and college expenses. Williamson County Judge James Martin ordered Gill in May to pay his wife and gave him 10 days to do so.
The WLAC radio show host owns a consulting firm and co-founded an online right-wing website.
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