Answer:
Legitimacy is commonly defined in political science and sociology as the belief that a rule, institution, or leader has the right to govern. It is a judgment by an individual about the rightfulness of a hierarchy between rule or ruler and its subject and about the subordinate's obligations toward the rule or ruler.
Explanation:
It would be John C Fremont. However he didn't win the whole election, the Democrat he was running against did.
They accepted volunteers, but the primary way the U.S got soldiers for the war was through Selective Service aka the draft.