we ve all seen today is there is faith here, too. reporter: she s chrisscrosse america urging people to get the vaccine. i m asking all of you who are listening right now to choose to get vaccinated. reporter: she s used her easy approachability, her call me gelatitude to try to bring together a divided nation in a year that even this season a political spouse has found challenging in an october speech revealing the job has not been easy. quote, there are times when the role of first lady pushes you to show up even when it s uncomfortable. we are elected. we have to define this role for ourselves, and we are thrust into a national spotlight in a way none of us could have anticipated. at 70 biden is the oldest sitting first lady in modern history, not that has slowed her down. there are more events, more