The House Ways and Means Committee is preparing to release more sensitive information about its investigation into Hunter Biden.

Republicans on the panel have told colleagues they will meet Wednesday to vote on whether to disclose information otherwise protected by strict taxpayer secrecy laws. It has to do with Republicans’ conversations with IRS whistleblowers, but the exact nature of the information is unknown.

The committee previously released similarly protected information about Biden in June.

The move comes as the president’s son has filed suit against the IRS, saying the agency has failed to protect his private tax information.

Republicans’ notice to colleagues makes clear the information is safeguarded by a section of the tax law that imposes tough penalties including jail terms for unauthorized disclosure. Lawmakers can get around those restrictions by voting in private to make it public, as they previously did with former President Donald Trump’s tax returns.

In the meantime, the notice says, lawmakers can view the information on Monday and Tuesday in private.

Federal prosecutors said in August that they plan to charge Hunter Biden with tax crimes in California or Washington, D.C., after a plea deal fell through.