Been going on for a long time.
Check it out:

The IRS sent a 1.1-million page database containing legally protected taxpayer information of tax-exempt organizations to the FBI several weeks before the 2010 midterm elections, according to new information from the House Oversight and Government Reform Committee.

“The IRS’s transmittal of this information to the FBI shows that the IRS took affirmative steps to provide sensitive evidentiary material to law-enforcement officials about the political speech of nonprofits,” said Oversight Committee Chairman Darrell Issa (R-Calif.) and Subcommittee Chairman Jim Jordan (R-Ohio) in a letter to the IRS Commissioner John Koskinen demanding more information.