“There are at least five reasons Joe Biden’s consistent lead over Donald Trump does not guarantee him a lock on the White House.
First, there are indications that Trump’s base of support — whites without college degrees — is more energized and committed to voting this year than key Democratic constituencies. And there is also evidence that polling does not reflect this.
Second, Latinos, who are key to the outcome in several crucial states — Arizona and Florida, for example — have shown less support for Biden than for past Democratic nominees. Many Hispanic voters seem resistant to any campaign that defines them broadly as “people of color.”
Third, absentee voting is expected to be higher among Democrats than Republicans, subjecting their ballots to a greater risk of rejection, a fate more common to mailed-in votes than to in-person voting.
Fourth, the generic Democratic-Republican vote (“Would you be more willing to vote for a Republican or Democratic candidate for Congress?”) through early July favored Democrats by more than 10 points, but has since narrowed to 6 points.
Fifth, the debates will test Biden’s ability to withstand three 90-minute battles against an opponent known for brutal personal attacks.
There are other factors — such as the possibility that the Republican Party will conduct an effective voter suppression drive, or that Trump and his advisers will contrive new mechanisms to pave the way to victory.”