clerical participation in Parliament
To accept or even solicit membership in Parliament, i.e., in such bodies in the State as have the right to frame laws, a cleric or a religious needs the permission of the Holy See in those countries where there exists a special prohibition of the Holy See; such would be France.
Where, however, no such prohibition has been made, a cleric or a religious may not aspire to, or accept, such offices without the express permission of his own ordinary and also of the ordinary of the place where the election is to take place.
This legislation also holds for the Congress of the United States, as well as for the legislatures of the various states as all of these are lawmaking bodies.
New Catholic Dictionary