I think they tend to be people who don't think about politics a lot. They believe that society has a list of problems and that it is the government's job to fix them. If the Republicans are the ones advocating a government program to solve their pet problems then that is who they will vote for. If it's the Democrats, then they get the vote. To me it seems that the word "moderate" is a euphemism for authoritarian".
Wow so you came to kick ass and chew bubble gum and you're out of bubble gum? well that sucks 'cause you haven't kicked any ass.