The official who enforces discipline among members of his party in parliament is the

The official who enforces discipline among members of his party in parliament is the chief whip. In parliamentary systems, the chief whip is a member of parliament who is appointed by their political party to ensure that party members vote in line with the party's position on legislative matters. The chief whip is responsible for enforcing party discipline and ensuring that members attend important parliamentary sessions and votes. While the majority and minority leaders are also important figures in parliamentary politics, their primary role is to lead their respective parties in parliament and set the party's legislative agenda. The clerk of the House, on the other hand, is a parliamentary official who is responsible for maintaining the records and proceedings of the House, and is not involved in enforcing party discipline. In summary, the official who enforces discipline among members of his party in parliament is the chief whip, who is appointed by their political party to ensure that party members vote in line with the party's position on legislative matters.