Cook, a nonpartisan forecaster, now makes this call, and forecasters say they see no sign that Democrats' gains are a polling 'sugar high,' because several separate measures point the same way.
The Senate map
- Democrats need to hold all their own Senate seats and flip 4 Republican seats; the Washington Post now calls that path feasible.
- CNN reports Republicans fear 2 key Senate races are slipping away, in North Carolina and Georgia.