Simple. Every person who votes gets a special lottery ticket making them eligible for a 100 or 200 million dollar prize; whatever it takes
And as I said, if the government cannot or will not come up with the prize money, then a few wealthy benefactors can put up the money...and this should include both conservatives and liberals and all in between. If the idea catches on there could be all sorts of consolation prizes like new cars and kitchen appliances etc so corporations can help to "sponsor" not candidates but voting and democracy itself. This ballot box brought to you by GE. Just kidding. And lastly no one is telling anyone who to vote for. You are simply being asked to vote and for exercising your free choice to vote for whomever you like, you get entered into a huge lotto. What could be more enterprising than that.