The Treasury Department’s inspector general will issue a new report in the coming weeks that could heap more bad news on the Internal Revenue Service, showing results of an audit of the IRS use of taxpayer-funded conferences, a Republican critic of the agency said on Friday.

Republican Representative Darrell Issa, among the lawmakers probing IRS scrutiny of Tea Party and other conservative groups’ applications for tax-exempt status, will hold a hearing on the yet-to-be-released report on June 6, a congressional aide said.

The panel will hear from J. Russell George, the Treasury Inspector General for Tax Administration (TIGTA), who issued the audit on Tea Party group scrutiny earlier this month, setting off a furor, an FBI probe, and the resignation of the IRS acting chief.

The congressional aide said the hearing would be about “an upcoming audit uncovering information about excessive spending at IRS conferences.”

A spokesman for TIGTA could not be reached for comment.

In March, Representative Charles Boustany, a Republican in charge of an oversight subcommittee in the U.S. House of Representatives, wrote the IRS about reports that the IRS produced a video including parodying the television show Star Trek as part of an employee training.

Steve Miller, whose last day as acting IRS Commissioner is Friday after being asked to resign by President Barack Obama following the Tea Party fracas, responded that the video was part of worker education to reduce travel and other costs, according to Boustany.

(Reuters)