Biden leads Trump, but margin tightening in latest presidential race polls

Two new national polls conducted nearly entirely after last week’s Republican National Convention indicate Democratic presidential nominee Joe Biden holding an upper-single-digit lead over President Trump.

But an average of all national surveys in the White House race shows a slight narrowing in the showdown between the former vice president and the Republican incumbent.

According to a USA TODAY/Suffolk University poll released Wednesday, Biden tops Trump 50-43% among registered voters nationwide. The former vice president's seven-point advantage is down from a 12-point lead he held in the previous USA TODAY/Suffolk University survey, which was conducted in June. The new poll was conducted Aug. 28-31, entirely after the GOP convention.

If the election were held today, a Grinnell College national poll also released on Wednesday shows Biden ahead of Trump 49%-41% among likely voters nationwide. The survey was conducted Aug. 26-30 – both during and after the Republican confab – by Selzer and Company.