Obama moves to largest lead yet in Gallup tracking poll

Three days' worth of polling after the news broke that Sen. Barack Obama said some small-town voters are "bitter," he has edged out to his largest lead yet in Gallup's daily national tracking survey.

Gallup says Obama leads Sen. Hillary Rodham Clinton 51%-40% according to its Saturday-Monday poll of 1,312 Democrats and voters who "lean" Democratic. Yesterday, Obama lead 50%-40% (matching what had been his largest lead until today). The margin of error: +/- 3 percentage points.

The news about what Obama said broke Friday afternoon.

As usual, we have to say that polls are snapshots of current public opinion -- not forecasts of what will happen on any far-off Election Day.