Wow, is this the perfect match for alot of you here!

http://www.politicalmachine.com/

The Political Machine is a new strategy game in which you are the campaign manager for a candidate for President of the United States. Choose a political party, put together the dream presidential ticket and go for it. Based on the real world, The Political Machine gives would-be candidates the taste of the challenge real candidates face. Fund raising, campaigning, building support, hiring operatives, winning endorsements, going on "The O'Maley Factor" and other cable news shows to answer the tough questions, and more.

I downloaded the demo of a game similar to this but I was discouraged from the get-go with the libertarian candidate beginning with less than 2% of the vote - rightly so, of course.