The unethical investigation (and subsequent 2008 conviction) of the late Senator Ted Stevens (R-Alaska) for alleged ethics violations reveals a crisis in democratic government: When Department of Justice investigators influence elections--in this case, one that gave Senate Democrats a veto-proof majority--they are showing themselves to be the rulers they have in fact become.
In many reapportionment schemes, the legislators pick their constitutents. In the Stevens investigation, where the judge held government lawyers in contempt after the trial, the bureaucrats in effect knocked off a Republican incumbent, who lost by fewer than 4,000 votes a week after the trial. The court-appointed counsel concluded that the prosecution withheld potentially exonerating evidence from the defense. Even Eric Holder had to discipline the lawyers, with one committing suicide. (It should be noted that a Republican Administration might not have been able to control their own staff.)