The US Catholic Church is more diverse and more divided than it was in JFK's time. Biden could offer an opportunity for the church to move beyond so-called "culture war" issues.
In the 2016 election, Donald Trump won 60% of the American Catholic vote. This year, it will be difficult for him to obtain a similar score, and that could have immense consequences.
Though often seen as socially conservative, the Catholic church has a strong progressive strain that can be traced back 50 years to Latin America's liberation struggles.
While many American Catholics believe demons and exorcism to be part of a distant past, an expert explains how beliefs that sexual desires could be part of demonic temptation still persist.