Answer:
The Political Era began from 1840 to 1930.
Step-by-step explanation:
The political era in the United States began when police officers introduced by politicians. These policies used by politicians to maintain power. Police served the local politicians in those eras where they worked for them. The weakness of these forces was that these police forces hired and fired with favouring to establish power by politicians. It is to note that during that period, there was no civil service.