What's the deal?

OK. Once is weird. Twice is strange. Thrice? Unacceptable. And worst, I haven't a clue of why. Here's the story:

1. Oregon: "Students passing through the Park Blocks yesterday afternoon were shocked to discover that a group of petitioners may have misled them into changing their party affiliation to Republican on their voter registration."
   
   
2. Pennsylvania: "Students who signed a petition that was being circulated last month on the Blue Bell campus to legalize marijuana for primarily medicinal purposes have now learned they were registered as Republicans"
   
   
3. Florida: "Students at the University of Central Florida and two community colleges claim they were duped into switching their party affiliations from Democrat to Republican, campus police officials said Tuesday."
   

Anybody got any good conspiracy theories on WHY there might be an effort in swing states to deceptively register college students as Republicans? I'll accept any and all theories, and skullduggery by either party (or any third party) if it offers even a remotely plausible account for this behavior.