Joe Biden regained a sizable lead over President Trump in a pair of top-rated polls that followed the Democratic National Convention.

A Grinnell College/Selzer & Company national poll conducted from Wednesday to Sunday, the week after the Democratic convention and during the Republican convention, found that Biden leads Trump 49% to 41%. The poll result is based on interviews with 827 likely voters reached by telephone and has a margin of error of plus or minus 3.4 percentage points.