The presidential race has become a lot less clear over the last few weeks.

Back in mid-August, Hillary Clinton held a large lead over Donald J. Trump.

Since then, her lead has slipped — but how far isn’t so obvious. The various forecasting models and polling averages have split about as much as they have all year.

What’s going on?

Clinton Lost Her Huge Lead

In mid-August, Mrs. Clinton led by around eight percentage points in national polling. Since then, there hasn’t been much evidence to confirm that large margin.

Yes, there have been a few polls showing her leading by a big amount. Monmouth, Quinnipiac and USA Today/Suffolk polls all showed her up by at least seven points nationwide.