Yes, Leo's papacy could be used temper Trump given the large number of catholic Americans.
Right hand men in Rubio and Vance are staunch Catholics who could be expected to defend the church or pope against any strident criticism by Trump.
Also one learned commentator opined that due to Leo's understanding of church law and extensive experience in church governance, his selection was considered imperative in addressing the woeful state of Vatican finances. Something George Pell started cleaning up but which Francis failed to complete.
