Former President George W. Bush and his successor, President Obama, at the April 25 dedication of Bush's library on the campus of Southern Methodist University in Dallas. Larry W. Smith /EPA /LANDOV hide caption

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What happens when the average person on the street tries to explain a public policy issue? It tends to make them rethink their position. Scott Olson/Getty Images hide caption

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President Obama is expected to nominate James Comey, seen in 2004, to be the next director of the FBI. Mark Wilson/Getty Images hide caption

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She's saying goodbye, for now at least: Rep. Michele Bachmann, R-Minn., has announced she won't seek re-election in 2014. (File photo from Jan. 4, 2012, when she left the Republican presidential race.) Jim Young /Reuters /Landov hide caption

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Internal Revenue Service Director of Exempt Organizations Lois Lerner as she was sworn in at a hearing held Wednesday by the House Committee On Oversight & Government Reform. Chip Somodevilla/Getty Images hide caption

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Former Rep. Anthony Weiner, D-N.Y., in June 2011 — at the height of the sexting scandal that led to his resignation from Congress. Andrew Gombert /EPA /Landov hide caption

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Former House Speaker Newt Gingrich in April 2012. Christian Gooden/St. Louis Post-Dispatch /MCT /Landov hide caption

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Outgoing acting Internal Revenue Service (IRS) Commissioner Steve Miller as he was being sworn in Friday before a House Ways and Means committee hearing. Nicholas Kamm /AFP/Getty Images hide caption

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