Why Are Voters The Last To Know?

I am writing this post at 11:30 a.m. on Tuesday. The polls in Massachusetts have been open less than five hours, and there are more than eight hours to go before they close. Yet I believe political insiders already know that state Sen. Scott Brown, the Republican, has upset Democratic attorney general Martha Coakley for the U.S. Senate seat that Ted Kennedy held for 47 years. I think the odds …