For decades, there was a lightness about Joe Biden — a springy, mischievous energy that was hard not to like, even if it allowed some people to classify him as a lightweight. For better and worse, he is a more solemn figure now. His voice is thin and clotted, and his gestures have slowed, but, in our conversation, his mind seemed unchanged. He never bungled a name or a date.
— Evan Osnos: Joe Biden’s Last Campaign