The 2020 US presidential election was followed more closely than any other in living memory.

Joe Biden's victory was the culmination of half a century of work, and his path to the White House wasn't an easy one.

Evan Osnos is the author of the biography Joe Biden: American Dreamer, which was published late last year.

He joined us on The Last Word to talk about Biden's life and 50-year political career, a story that has been shaped by deep personal losses and, ultimately, resilience.