From The New York Times:
Most Americans do not see either Ms. Harris or Mr. Trump as particularly religious. In a poll in September by The Associated Press-NORC Center for Public Affairs, 43 percent of respondents said they thought Ms. Harris was “religious,” and 35 percent said that of Trump. This perception may not be a problem for a significant share of Ms. Harris’s base. As religious adherence declines broadly among Americans, the drop-off has been much steeper among Democrats. In 1999, about 60 percent of both Democrats and Republicans described themselves as “religious,” according to polling by Gallup. By 2023, the figure among Republicans had barely moved, but only 37 percent of Democrats described themselves that way.