From Accounting Today:

Sen. Chuck Grassley, R-Iowa, the former chairman of the Senate Finance Committee, is looking into findings from the Treasury Inspector General for Tax Administration that the confidential tax records of political donors or candidates have been inappropriately accessed or disclosed in several instances since 2006 and asking why the Justice Department has declined to prosecute the perpetrators.

Any agency with access to tax records is required to act with neutrality and professionalism, not political bias,” he said in a statement. “The Justice Department should answer completely and not hide behind taxpayer confidentiality laws to avoid accountability for its decision not to prosecute a violation of taxpayer confidentiality laws. With the IRS on the hot seat over targeting certain political groups, it’s particularly troubling to learn about ‘willful unauthorized access’ of tax records involving individuals who were candidates for office or political donors. The public needs to know whether the decision not to prosecute these violations was politically motivated and whether the individuals responsible were held accountable in any other way.”