Rep. Chris Cannon, R-UT, participates in a House Judiciary Committee Commercial and Administrative Law Subcommittee hearing on "Politicization of the Justice Department and Allegations of Selective Prosecution" on Capitol Hill in Washington on July 10, 2008. Former White House Deputy Chief of Staff Karl Rove was subpoenaed to testify but did not appear. (UPI Photo/Roger L. Wollenberg)