In 1992, I voted for Ross Perot. I was just a few days from turning 8 years old, and I was in the second grade.
Obviously, it didn't count for anything and, as you might expect, my political reasoning wasn't very advanced. I feel pretty confident saying I had no idea what he stood for, and I had very little knowledge of America's party system or its election process.
I'm pretty sure I voted for Perot because I felt sorry for him. Out of the three "most popular" candidates, he had the least support, from what I'd heard. So I voted for him.