Outgoing acting Internal Revenue Service Commissioner Steve Miller (right) and Treasury Inspector General for Tax Administration J. Russell George are sworn in before a full House Ways and Means Committee hearing in May. Nicholas Kamm/AFP/Getty Images hide caption

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Rep. Sander Levin, D-Mich., listens as ousted IRS Chief Steve Miller and J. Russell George, Treasury inspector general for tax administration, testify during a House Ways and Means Committee hearing on May 17. Charles Dharapak/AP hide caption

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Lois Lerner, head of the IRS unit that decides whether to grant tax-exempt status to groups, leaves a House Oversight and Government Reform Committee hearing in May. J. Scott Applewhite/AP hide caption

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Third-generation Oklahoma farmer Scott Neufeld says crop insurance is important to his family's business. Tamara Keith/NPR hide caption

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