A Constitutional Republic is the current form of government in the United States. However in recent years, many people have criticized the federal government for moving away from a Constitutional Republic, as defined by the Constitution, and towards a pure democracy.
According to standard postal service codes, a mailbox should not sit any higher than 45 inches from street level. Place the post in the hole. Level it and attach two support beams at the center to keep the post standing up straight. Place one at the side of the post, and then add another to the back. This will ensure the post does not move while pouring the concrete and it remains level while the concrete is drying. Pour the dry concrete straight into the hole leaving 3 to 4 inches of space from the top of the hole.
To keep the mailbox upright, it is recommended that the mailbox be 24 inches underground. Since the road and the curb conditions change from city to city and state to state, the USPS asks that people contact their local postmaster to ask for approval.