Did you use the section in TurboTax to report Gambling Winnings? If so, you were also asked to enter your losses which would have reported on Schedule A as Other Itemized Deductions on Line 16.
To enter, edit or delete Gambling Winnings and Losses -
Click on Federal Taxes (Personal using Home and Business)
Click on Wages and Income (Personal Income using Home and Business)
Click on I'll choose what I work on (if shown)
Scroll down to Less Common Income
On Prizes, Awards, and Gambling Winnings, click the start or update button
