I think it’s in bad taste to investigate and comment upon a specific person’s charitable giving. It’s not like you can know the full story. Someone who doesn’t have a lot to put on the tax return might be doing something they can’t declare for tax purposes — grassroots, no-government-involved things like putting a neighbor’s child through college. Or they may simply prefer not to declare where they give, not seeing their giving as a vehicle for tax savings or (in the case of public figures) showing off how charitable they are.

I do not question at all how much Mr. Santorum does or does not give. It’s easy to figure out not to vote for him based on other information.