President Donald Trump’s appeal to religious conservatives is a cornerstone of his political identity. But Joe Biden is a different kind of foe than Trump has faced before: one who makes his devout Catholicism a central part of his persona. Democrats are betting on Biden’s evident comfort with faith as a powerful point of contrast with Trump. As Trump promises to be evangelicals’ “champion” on policy, Biden is making a less transactional play by projecting a beliefs-focused brand. The faith-focused work underway within Biden’s campaign suggests that he could chip away at Trump’s base by appealing to pockets of conservative faithful.