Not only did the former IRS commissioner visit the White House dozens of times during his tenure, but his chief of staff was reportedly making those visits even more frequently. The Washington Examiner reported Friday that Jonathan M. Davis, the chief of staff for former IRS Commissioner Douglas Shulman, appears to have visited the White House campus up to 310 times between late 2009 and early 2013. Sources told the Examiner that Davis, who had little background in tax policy, largely served as a political aide. It's unclear what he was doing at the White House all those times. Shulman,...