What percentage of Americans are actually on welfare?

People on here keep talking about "welfare Democrats." But I'm pretty sure that 53% of the country isn't on welfare. What's the actual number?
Update: If it was the welfare vote that got Obama elected would it be fair to say that the millionaire vote got Bush elected?
Update 2: Anybody actually have statistics, like from government websites? So far all I see is speculation.
8 answers 8