Too bad you can't reply with
"Dear Sir or Ma'am:
I was so moved by the obvious sincerity in your recent email regarding the direction in which our country is headed that I have decided to accept your invitation. I am pleased to announce that I have sent a $3 donation in the name of everyone in my home, as well as in President Obama's name, to the RNC. Thank you for your correspondence.
Bob"
Classic...
Simply Classic...
To the OP: Please, please do as Surveyor has suggested.