A federal constitution is one which sets up a system of federalism within a country. Federalism is a political system in which the national government and the smaller governments (states or provinces) each have their own powers that are specified by the constitution.
Federalists argued for counterbalancing branches of government. In light of charges that the Constitution created a strong national government.
Federalists argue that the separation of powers among the three branches of government protect the rights of the people.
Federalism guides against secession. Secession is the breakaway of a part of the country or unit of the country or nation from it for the purpose of self- governance. This is possible because of its national government power. Power is concentrated at the centre unlike in a confederal States, the centre is weak, hence, secession is possible.
learn more about federalism: https://brainly.com/question/1899994