Artful Dodger: Yes, unfortunately, I don't think a lot of people actually research who they are voting for. Many people go with a name just because they've heard of it. (All those people waving signs at intersections right around election days). Or they know their friend/mom/uncle/boss is voting for someone, so they go the same way.

Or with incumbents, people won't actually find out what their voting record is, and ask themselves if that is the way they want the person representing them to vote.

Or people get "stuck" in their party. I imagine there are a lot of moderate republicans, or moderate democrats who might actually find there is someone in the "opposite" party who would actually be a good match. (I'm not a big fan of the 2 party system)

In other words, there just aren't enough responsible voters.

Plus, let's face it, the majority isn't always "correct".. They just have the numbers.