Internal Revenue Service

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The IRS goes after Bitcoin Illustration by Greg Groesch/The Washington Times

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Illustration on the carelessness of the IRS by Alexander Hunter/The Washington Times

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FILE - In this Sept. 21, 2016 file photo, IRS Commissioner John Koskinen testifies on Capitol Hill in Washington. House Republicans are unhappy that their favorite whipping boy is still in charge of the IRS. On Wednesday, April 5, 2107, they asked President Donald Trump to do something about it. Fifteen Republicans on the House Ways and Means Committee sent Trump a letter asking him to fire IRS Commissioner John Koskinen. (AP Photo/Pablo Martinez Monsivais, File)

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Illustration on the IRS under Hillary Clinton's presidency by Linas Garsys/The Washington Times

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FILE - In this Feb. 10, 2016 file photo, Internal Revenue Service (IRS) Commissioner John Koskinen testifies on Capitol Hill in Washington. House conservatives on July 13, 2016, have taken the first step to force an impeachment vote on Koskinen. Conservatives accuse Koskinen of gross negligence, arguing he stonewalled their investigation into IRS targeting of conservative groups. (AP Photo/Manuel Balce Ceneta, File)

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FILE - In this Feb. 10, 2016 file photo, Internal Revenue Service (IRS) Commissioner John Koskinen testifies on Capitol Hill in Washington. The IRS says the agency's commissioner won't appear at a House Judiciary Committee hearing Tuesday, May 24, 2106, examining whether he deserves to be impeached. (AP Photo/Manuel Balce Ceneta, File)

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Rep. Diane Black, Tennessee Republican, is calling for John Koskinen to step down as IRS commissioner. "We didn't need another reminder that the IRS is mired in incompetence and mismanagement, but we got it anyway," she said in a statement. (Associated Press)

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Illustration on the IRS's Microsoft audit by Alexander Hunter/The Washington Times

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Lois Lerner's emails became an issue after she was singled out as a key figure in the IRS's treatment of tea party and conservative groups who sought tax-exempt status. The IRS improperly delayed hundreds of applications and sent out intrusive questionnaires asking what the agency now says were inappropriate inquiries. (Associated Press)

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Illustration on IRS harassment of Tea Party groups by Alexander Hunter/The Washington Times

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National Edition News cover for July 28, 2015 - GOP calls on Obama to fire IRS chief: 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)

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Illustration on the push for transparency concerning IRS spending by Linas Garsys/The Washington Times

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FILE - In this June 2, 2015, file photo, Internal Revenue Service (IRS) Commissioner John Koskinen testifies on Capitol Hill in Washington, before the Senate Homeland Security and Governmental Affairs committee hearing examining the IRS data breach. The IRS is joining with state and private industry to combat identity theft by sharing more data about how tax returns are filed and taking other steps, Koskinen announced Thursday, June 11. (AP Photo/Jacquelyn Martin, File)

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Bill Levin, who founded the First Church of Cannabis to test Indiana's controversial religious freedom law, was notified last week that the Internal Revenue Service has incorporated the church as a tax-exempt religious organization. (MSNBC)

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Bill Levin, who founded the First Church of Cannabis to test Indiana's controversial religious freedom law, was notified last week that the Internal Revenue Service has incorporated the church as a tax-exempt religious organization. (MSNBC)

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IRS Commissioner John Koskinen, who, along with a review board must approve the decision to keep any employees deemed to have intentionally cheated on their taxes, has insisted things at his agency have improved over the last two years. (Associated Press)