he said on air that he doesn't vote in order to keep an "appearance" of impartiality?
I believe that is what I read. I have to look it up. Apparently he said something like that recently. I'll find it.
Either way, he or MSNBC should just be up front about it.
If he wants to donate, and its within his contract and policies of MSNBC, fine, just be open about who and how much and why.