[Gideon7]

The rule of thumb is that undecideds always break against the incumbent. The incumbent needs to have at least 50% support going in to the final month or he is in trouble.

For comparison, Jimmy Carter’s average approval rating was 45.5%.

[ScottinVA]

The rule of thumb is that undecideds always break against the incumbent.

We'll see how undecideds go when a wad of "Obama munny" is dangled in front of them.

[Atlantan]

Do you know how Reagan and Jimmy Carter polled 6 months before the election in 1980?