Hubert Humphrey

As 10 candidates head to Houston for the party’s third primary debate on Thursday night, aides on multiple other campaigns tell me they haven’t anticipated Biden’s resiliency, and many admit they don’t know quite what to do about it.…

These findings are bound to encourage those who believe Democrats should focus on energizing college-educated whites and minorities, who are growing in the electorate (the latter much faster than the former). But the electoral…