Ron Walker, pastor at The Little White Church in Hill City, S.D., was one of more than 1,600 pastors to preach politics on Pulpit Freedom Sunday earlier this month, challenging the 1954 tax law that prohibits all nonprofits from politicking. (thelittlewhitechurch.net)

Ron Walker, pastor at The Little White Church in Hill City, S.D., was one of more than 1,600 pastors to preach politics on Pulpit Freedom Sunday earlier this month, challenging the 1954 tax law that prohibits all nonprofits from politicking. (thelittlewhitechurch.net)