Internal Revenue Service

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David Grimm of Pittsburgh holds a poster depicting a crying George Washington as he applauds for speakers during "Audit the IRS," a tea party rally against the Internal Revenue Service on the West Lawn of the U.S. Capitol Building in Washington on June 19, 2013. (Andrew Harnik/The Washington Times)

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Activists with the Tea Party Patriots who were targeted by the IRS hold an "Audit the IRS" rally on the West Lawn of the U.S. Capitol building in Washington on June 19, 2013. (Annie Z. Yu/The Washington Times)

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**FILE** The exterior of the Internal Revenue Service building in Washington is seen on March 22, 2013. (Associated Press)

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Freshman Sen. Ted Cruz, Texas Republican, will be among the congressional Republicans gathering Wednesday at the Capitol for the "Audit the IRS" rally organized by the Tea Party Patriots, who want to keep reminding everyone of the agency's excruciatingly close attention to conservative groups. (Associated Press)

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** FILE ** Cliff Toye, of Tabernacle, holds a sign as he stands with others outside Internal Revenue Service offices Tuesday, May 21, 2013, in Cherry Hill, N.J., during a tea party rally protesting extra IRS scrutiny of conservative groups. The Internal Revenue Service gave extra scrutiny to tea party and other conservative groups seeking tax-exempt status. (AP Photo/Mel Evans)

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Glenn Beck will be in Washington for Wednesday's "Audit the IRS" rally at the Capitol despite his professed loathing of the capital city.

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The targeting of conservative groups by the IRS "must be investigated fully," said Rep. Steve Stockman, Texas Republican. (Associated Press)

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Rep. Elijah E. Cummings, Maryland Democrat, released excerpts appearing to support his case that neither the White House nor the IRS headquarters in Washington pushed for extra scrutiny of the conservative groups seeking tax-exempt status. (Associated Press)