Bob Sparks: Polls have recently missed the mark; how about the GOP presidential field?
Political opinion polls can be useful, but they can also be dangerous in a figurative sense. Those thinking the election is over because a poll says so can be in for the shock of their lives. Polls can get it wrong in a big way. We have some recent examples. Going into Tuesday night’s statewide elections in Kentucky, Republican Matt Bevin was trailing Democrat Jack Conway by 5 points in the race for governor, according to the final Bluegrass Poll…