The Palin Effect

The Gallup Daily Tracking Poll confirms the results of the Rasmussen tracker - while Barack got a bump of several points from the Bill and Hillary Clinton days of the convention, day four, featuring The Messiah himself, brought him no increase in support.

Barack Obama maintains an eight percentage point lead over John McCain when registered voters nationwide are asked whom they would vote for in the presidential election if it were held today, according to the latest Gallup Poll Daily tracking figures.

It appears we can credit the Palin Effect, along with the clever VP announcement handling of the McCain team, with having nipped Barack's growth in the bud. The numbers will likely pull closer together by the beginning of the week.

Rasmussen also didn't change the day after Barack's big speech.

The numbers are little changed since yesterday and show Barack Obama attracting 47% of the vote nationwide while John McCain earns 43%.

Scroll down for more poll results.