In a parliamentary system, by contrast, the legislature holds supreme power. The prime minister is chosen by members of the legislature (Parliament) from among their own number and in practice is the leader of the majority party in the legislature.
There are 435 Representatives in the House of Representatives. The number of members in the House of Representatives is a different story and is based on population.
How many members are in the house of Congress? Totalling 535, there are 100 members of the Senate (two Senators respresenting each state of the Union) and 435 members of the House of Representatives (duly-elected Congressmâ¦en).