[BlackRazor]

it is 44 to 43. Challenger usually get majority of undecides at the end.

Normally that is the case, but what about an instance when both candidates are already state-wide incumbents? That is the case in South Dakota. Thune is the state's lone House representative. Because of that, I don't think you'll get the normal undecided vote breaking against the incumbent. This is essentially an incumbent vs. incumbent match-up.

[GoMonster]

they still vote for change and Tim Johnson is the same and thune is the change. plus most are Republicans and they will come home in the end. Zogby has Johnson getting 21 per cent Repub vote. not going to happen