This is because the law does not permit a deduction for contributions to any organization primarily engaged in lobbying for legislation. (secure.humanesociety.org)
So if you don't like the rules, get on a board and start lobbying for changes to the rules. (wellingtonfloridashortsales.com)
But that won't keep the towns from lobbying for more sales - tax revenue, of course. (hudsonvalleyone.com)