One of the many flaws in exit polls is that the pollsters seem to interview people more like themselves. And that many conservatives can't be bothered to reply.
That's my theory with polls in general. Conservatives don't bother. Now, we could put the word out and take the poll game away from the MSM, but I suspect Republican strategists like the fact that the Dems win every poll and lose every election.
I've seen "Gallup Poll" on my Caller ID twice.
I let the machine get it.