I actually made contact w/ all of my potential supervisors. In relation to two of my three rejections, both said they were unable to convince their committees to take me due to concerns about my interests in religious history. Of course, they could just be saying that, but that's what I've been told. Neither of those POI have explicit expertise in religious history, but have research interests in my broader thematic interests. It is what it is, though, and I've already been thinking how I need to emphasize my work and interests in broader U.S. History, rather than just my projects in American religious history. It has just been frustrating and needed an outlet to vent.