Indications are that Democrats are starting to gain support in both the Southeast (North Carolina, Georgia) and the Southwest (Arizona), and are running even in Florida and Texas, and keeping their lead in Virginia, Colorado, New Mexico, and Nevada.
If this trend continues, the Midwest Rust Belt states (Michigan, Wisconsin, Pennsylvania), while still important, will be less significant in future Presidential elections.
And it looks as if many of the Senate seats that are being decided this November will end up with a Democratic Senator–as in North Carolina, Georgia, Arizona, Colorado, and New Mexico.
The electoral map in future elections will be vastly different than it has been in previous election rounds.