An inspector general report released Thursday finds that the IRS had failed to investigate an “ongoing pattern of non-compliance” and “improper use of taxpayer information” with regards to the ObamaCare law.

The report, which was issued by the IRS inspector general, says that while the IRS received complaints about the practice, it failed to conduct a criminal investigation.

The watchdog’s report was released after Sen. Ron Johnson (R-Wis.) and Sen. Richard Shelby (R.

Ala.) announced they would reintroduce legislation that would repeal ObamaCare.

The inspector general’s report found that the agency’s investigation of complaints was inadequate.

The IRS had previously issued guidance on how to handle complaints, but that guidance did not explicitly prohibit the IRS from investigating itself, the inspector general said.

The agency also “failed to take steps to address the use of noncompliant tax information and information that is improperly used,” the report said.

Johnson and Shelby are both up for re-election next year.