Last week, I argued that Sen. David Vitter – the undisputed leader in this year's governor's race – should be nervous because of our electorate's long history of punishing frontrunners and promoting also-rans. (SNIP) Democrats have a clear choice: send Edwards into a runoff that he almost certainly cannot win – or back a moderate Republican, who could defeat Vitter. If Democrats have any power left in Louisiana politics, it is electing moderate Republicans. That's not a goal that will launch Democratic activists out of bed each morning but it's about all the power the party has left (in statewide...