Biden holds at least a narrow lead in all six of the states, which will play a major role in determining who wins the White House on Nov. 3. Here is where the race stands in all of those states, and how it has changed from the last survey:

Arizona: Biden 49%, Trump 45% (was Biden 49%, Trump 47%)
Florida: Biden 49%, Trump 46% (unchanged)
Michigan: Biden 49%, Trump 43% (was Biden 50%, Trump 44%)
North Carolina: Biden 49%, Trump 47% (was Biden 48%, Trump 47%)
Pennsylvania: Biden 50%, Trump 46% (was Biden 49%, Trump 46%)
Wisconsin: Biden 50%, Trump 44% (was Biden 49%, Trump 44%)…

It shows a race changing little even in a period where presidential candidates can see a temporary bump after they inundate voters at their nominating conventions. Though Biden’s lead in both national and swing-state polling averages has fallen from highs seen during the worst of the coronavirus pandemic in June and July, the CNBC/Change Research polls find the presidential race largely unchanged by events in recent weeks.