Did Michigan Democrat sabotage Conyers?

  I listened to Rush a while today, who was cynical that, even though one judge ruled that Conyers' signatures to qualify were invalid for any number of reasons, another appellate judge would ride in and claim Conyers does indeed qualify.
  Sure enough, that is exactly what happened late today with an Obama appointee saying, oh, sure, Conyers can be one the ballot, because they were "good faith mistakes" and also mumbling the word "unconstitutional," which Democrats seem to haul out whenever they feel like it and excoriate when they think it's just too old fashioned.
  The "good faith mistakes" included unregistered voters, inaccurate addresses, and insufficient numbers and a wanted convicted felon gathering signatures. The New York Times:

More than 1,000 of the signatures collected on Mr. Conyers’s behalf were invalidated when it was discovered that hundreds of the names belonged to people who were not residents of his district or not registered to vote.

Even more damaging was the revelation that several petition circulators were not qualified, under the state law that governs elections; at least two were not registered voters. In the end, Mr. Conyers was left with 592 valid signatures, far short of the number needed.

  So all day I was thinking, hm. What's going on with that. 
  Conyers' primary opponent is civil rights activist Rev. Horace Sheffield, who was charged with domestic abuse in February, but, hey! it wasn't the first time he's been charged with assault and other offenses and hey! Conyers' considerably younger wife is was in jail for, you know, corruption and stuff. 
  And Conyers himself is no clean spring chicken, having manipulated through the murky waters of politics in DC for the past 50 of his 85 years.
  But Sheffield is a particularly nasty opponent, which makes one wonder if there's something fishy with such disreputable characters collecting signatures for the odious and seemingly secure Conyers. 
  One might also recall that Thaddeus McCotter was sabotaged in such a manner a short while back and, though Mike Duggan did win the Detroit mayoralty through write in vote, another candidate named Mike Dugeon suddenly appeared on the scene also as a write in when Duggan was bumped for having filed too early. Hm. 
  Sounds familiar, as a reporter from The Hill mentioned tonight. Hm.
  Jeff Gorman, retired airline pilot and Navy veteran, is the Republican candidate and undoubtedly clean as a whistle which will probably disqualify him in the eyes of Detroit's voters.