Actually, they are. Or at least, if you've ever donated to any political campaign they are.

http://fundrace.huffingtonpost.com/

The act of donating to a party is a public act though... unlike voting. You declare it on your tax return for goodness sake.

You don't declare them in your tax return. Donations to political campaigns are not tax deductible.

Hmm, I didn't know that. They are up here in Canada.