The Black evangelical, Mormon, and Muslim voting blocks aren’t traditionally top concerns for presidential campaigns, but religious groups’ loss of enthusiasm for President Joe Biden in swing states could deal a blow to Democrats this November. 

The Harvard-run Cooperative Election Study shows the Biden campaign might have cause for worry about the president’s loss of popularity in some voting blocks across swing states from 2021 to 2023, according to a report from the Salt Lake Tribune.

Arizona is home to a large Mormon population, while a significant number of Muslims reside in Michigan. Both religious communities’ support for Biden is on the decline, a trend that could prove critical in the swing states.