Noah Feldman: Arpaio pardon would show contempt for Constitution

If President Donald Trump pardons Joe Arpaio, as he broadly hinted at during a rally Tuesday in Arizona, it would not be an ordinary exercise of the power -- it would be an impeachable offense. Arpaio, the former sheriff of Arizona’s Maricopa County, was convicted of criminal contempt of court for ignoring the federal judge’s order that he follow the U.S. Constitution in doing his job. For Trump to pardon him would be an assault on the federal judiciary, the Constitution and the rule