Full transparency is important these days, especially in the lobbying and business world. A lot of lobbyists give to both sides, but claim allegiance to one party. Your neighbor, client or old friend may be politically active and its easy to find out who they donate to through the Open Secrets website.
I remember a realtor in my neighborhood who claimed to be in one party, and I was managing a campaign for a good friend. He told me to my face he did not get involved in politics, and I just happened to check his donations, and lo and behold he had given to my friend’s opponent. We have not spoken since, as I won’t do business with someone who lies to my face!
In any case, if you have questions about someone’s donation habits, or a corporation as well, go to:
http://www.opensecrets.org/donor-lookup
Enjoy!