As a Republican and a Trump supporter, I can assure you that it’s unlikely that anybody’s soul is in jeopardy because they voted for Biden/Harris. The only way in which I think that would occur would be if they voted for Biden/Harris specifically because they want their administration to promote things that are contrary to Catholic teaching. Most obviously, if their sole or main reason for voting Democrat was for the purpose of maintaining, or even further liberalizing, existing abortion laws. I know people who voted Democrat this year who did so for the best of reasons, or at least for reasons that are perfectly compatible with the Catholic faith. One of my sons and his girlfriend voted for Biden/Harris, I believe largely for reasons to do with Native American issues (she is Native American). I do not think that their souls are in jeopardy.