WASHINGTON, May 23 (Reuters) - The head of a hard-line Republican conservative faction in the U.S. Congress wants to impeach the nation's top tax officer and said lawmakers could do this without accusing him of any crime.
Internal Revenue Service Commissioner John Koskinen should be impeached within weeks, said Jim Jordan, chairman of the House of Representatives Freedom Caucus, in an interview.
Jordan's demand comes amid numerous Republican attacks on the IRS in recent months. Bashing the tax-collecting agency is a perennial Capitol Hill practice, but Jordan and a handful of other conservatives have been pushing it further than usual.
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IRS Commissioner John Koskinen
Leading US House conservative wants IRS chief impeached
Internal Revenue Service (IRS) Commissioner John Koskinen testifies on Capitol Hill in Washington, Tuesday, June 2, 2015, before the Senate Homeland Security and Governmental Affairs committee hearing examining the IRS data breach. (AP Photo/Jacquelyn Martin)
Internal Revenue Service Commissioner John Koskinen testifies on Capitol Hill in Washington, Tuesday, Feb. 3, 2015, before the Senate Finance Committee during a hearing to examine the Internal Revenue Service Operations and the President's proposed budget request for fiscal year 2016. (AP Photo/Susan Walsh)
Internal Revenue Service Commissioner John Koskinen is sworn in before the House Oversight Committee as lawmakers continue their probe of whether tea party groups were improperly targeted for increased scrutiny by the IRS, on Capitol Hill in Washington, Monday, June 23, 2014. The IRS asserts it can't produce emails from seven officials connected to the tea party investigation because of computer crashes, including the emails from Lois Lerner, the former IRS official at the center of the investigation. (AP Photo/J. Scott Applewhite)
IRS Commissioner John Koskinen, right, shakes hands with House Oversight Committee Chairman Darrell Issa, R-Calif., left, before the start of the House Oversight and Government Reform Subcommittee on Economic Growth, Job Creation, and Regulatory Affairs hearing, Wednesday, July 23, 2014, on Capitol Hill in Washington, investigating the IRS' targeting of conservative organizations. Koskinen was testifying before the committee. (AP Photo)
WASHINGTON, DC - JUNE 02: I.R.S. Commissioner John Koskinen testifies before the Senate Finance Committee June 2, 2015 in Washington, DC. The committee heard testimony on the topic of 'Internal Revenue Service Data Theft Affecting Taxpayer Information.' (Photo by Win McNamee/Getty Images)
WASHINGTON, DC - SEPTEMBER 17: The House Oversight and Government Reform's Economic Growth, Job Creation, and Regulatory Affairs Subcommittee Chairman Jim Jordan (R-OH) (C) and ranking member Rep. Matt Cartwright (D-PA) (L) hear testimony from Internal Revenue Service Commissioner John Koskinen during a hearing in the Rayburn House Office Building on Capitol Hill September 17, 2014 in Washington, DC. The Oversight and Government Reform Committee continues to investigate the IRS for targeting political groups applying for tax-exempt status for intensive scrutiny based on their names or political themes. (Photo by Chip Somodevilla/Getty Images)
MIAMI, FL - JULY 31: Internal Revenue Service Commissioner John Koskinen speaks to the media during a visit to the Miami office at the Claude Pepper Federal Building on July 31, 2014 in Miami, Florida. Mr. Koskinen is touring several IRS offices since he became head of the nation's tax agency. (Photo by Joe Raedle/Getty Images)
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He said Jordan could be impeached simply because he had betrayed the trust put in him by the U.S. public to carry out his job correctly.
"When someone violates the public trust in such a way as this individual has, and that agency has, then that's what warrants ... impeachment," Jordan said.
Impeachment is a formal charge of wrongdoing for a trial that would occur in the Senate, where a two-thirds vote is necessary for removal from office. Republicans control only 54 of the 100 Senate seats, making such a vote unlikely.
Asked when the House should act, the Ohio Republican replied: "I hope before we leave for the summer break."
The IRS said in a statement that Koskinen has provided Congress with full cooperation and truthful testimony and remains focused on serving U.S. taxpayers.
On Tuesday, Republicans will detail their complaints about Koskinen at a House Judiciary Committee hearing.
Never popular with lawmakers, the IRS angered Republicans in 2013-2014 in a controversy over its handling of applications from conservative political groups for tax-exempt status.
The episode caused a shake-up of top IRS personnel. Koskinen was brought in by the Obama administration in late 2013 to restore order. But the House has since approved several bills attacking the IRS and its budget has been sharply cut.
Jordan said a second hearing in June would be about determining the standard for impeachment.
The grounds for impeachment listed in the Constitution are "treason, bribery or other high crimes and misdemeanors."
Koskinen has declined an invitation to testify on Tuesday. He is accused of failing to comply with a congressional subpoena and misleading investigators. Republicans have said his inaction resulted in the destruction of thousands of key emails.
Up to now, impeachment has been used against two presidents, a cabinet secretary, a senator and 15 federal judges, according to the Congressional Research Service.