Who's getting spam with political subject lines?

In one of my email accounts--not one I use often and certainly not one with a public address--I've been getting a LOT of spam with subject lines that seem to be tailored to my political interests. For instance:

"I expect to continue to represent th...
A prosecutor said the case will go be...
According to the affidavit, the inves..
"Nothing I have learned in the last 4...
The Israeli army said Hamed "mastermi...
Countrywatch:Israel
O'Reilley turned down a request by CNN

These all turn out to be ads for appetite suppresents or something.

One thing I HAVE done with this email account in recent years is to donate to some candidates. This leads me to believe that someone, somewhere, has gotten their hands on a candidate's email list and is using it to send out a pile of specialized spam.

Just a new variation on the same old shit.

on my personal email that I don't give out to many..

http://spambayes.sourceforge.net/

I'm very happy with it because it actually works. It's free too!

news sources, i.e. "Tammy Futzmuddle" is sending me "U.S. willing to talk to Iran."

I HAVEN'T donated to candidates (only because I can't afford to) and am suddenly getting a couple dozen a day like this, and the one I accidentally opened was a drug ad. Easy to spot, easy to delete.

A hell of a lot. Mostly sounding like stories of interest either to dems or addressing things that I've posted.

I have user accounts at maybe 5-6 'political' sites, and at a mess of newspapers. Some have suffered from long disuse and neglect. I actively read three of them, but only post here. Some of the accounts are at an older e-mail address; that gets almost no spam.

A couple of options:
--spyware's reporting what URLs I look at and what things I've read. I constantly update an anti-spyware program and run it. I always clean out things.
There are two problems with this: My reading is eclectic. When I was anti-Soviet before being anti-Soviet was popular, I read American papers *and* Pravda, Izvestiia, and Literaturnaia gazeta. Now I read dem and RW sites, progressive and strongly Islamic sources. Why the spam has such a liberal bias can't be accounted for straightforwardly, I don't think.
Then there's the reason why they would focus on just one e-mail address, and not on the others that I routinely check and one of which I sometimes use.
A possible explanation would be to invoke frequency: most URLs are dem/liberal/progressive, and most of the e-mail is sent using one account.

--one or more of the accounts linked to my usual ISP e-mail address has been hacked. My leading candidate is DU. After I make a couple of linguisticky posts here there's a spike in linguisticky spam. But that doesn't rule out that something is 'reading' my posts, so it's my computer that's been hacked, not DU.

Come to think of it, I can test this. I think I will tomorrow, when I have access to my wife's computer.