The 26th Amendment to the US Constitution gave 18-year-olds the vote. The fear was that they were too immature to vote and would by default therefore vote Democratic. Those fears were unfounded as the result is that they simply don't bother to vote in great numbers anyway.
So, here we have some high school students in Washington state who are either old enough to vote or will be soon:
Well, we can't really expect them to be all that smart after only twelve years of education in the American public education system can we?