Michelle Bachmann campaign -- spammers
An article from the Iowa Republican: Bachmann Campaign In Hot Water Over Misuse of Homeschooler Email List
In a nutshell, the Bachman campaign downloaded the email contact list of the Network of Iowa Christian Home Educators (NICHE) without NICHE's knowledge or permission and used to to send political spam to its members.
Interestingly, campaign laws may now require NICHE to make its mailing list available to any other political candidate that wants to use it.