The founding fathers believed the principle of federalism to be important o put in the constitution because

Representative would rule on behalf of the citizens
The people would hold the ultimate authority in government
Citizens would be guaranteed the right o vote
The federal government would share powers with the share government

The founding fathers believed that federalism, which divides power between a central government and state governments, was important to put in the constitution because it would help prevent tyranny and promote individual liberty. By having a system of checks and balances and distributing power among different levels of government, they hoped to ensure that no one branch or level of government would become too powerful. This would also allow for more local control and flexibility in governing, as different states or regions could tailor policies to their specific needs. Additionally, federalism was seen as a way to promote unity and cooperation among the states, while still allowing for diversity and experimentation in policymaking. Ultimately, the principle of federalism was seen as a way to protect the rights and interests of the people, ensuring a government that was accountable and responsive to their needs.