How does the structure of Cicero's argument in On the Commonwealth compare to the structure of Hobbes' argument in Leviathan?

The Hobbes' argument in Leviathan calls that civil peace and social unity are best achieved by the stablishment of a commonwealth through social contract. On Cicero's argument the commonwealth is a constutition of the entire people, where they united due to the spirit of congregation which naturally belongs to humans.

In Leviatan, the commonwealth is ruled by a sovereign power responsible for protecting the security of itself and granted absolute authority to ensure the common defense. To Cicero's, the ideal ruler to a commonwealth are the People in all, to ensure the tie of social affection and the public interest, so it can mantains its force.