Answer:
Political appointments are short-lived in order to prevent autocracy, tyranny, and clinging on to power.
Explanation:
Power corrupts and absolute power corrupts absolutely. Humans have a tendency to be intoxicated by power. This is why most political positions run for just a few years after which the people can determine through voting on whether they will continue with the appointee or elect another person. The presidential and senatorial sectors of the United States democracy follow this system.
Presidents are allowed 4 years in office after which another election is conducted to determine their remaining or being removed. This prevents tyranny and the imposition of the opinions of a few against the majority.
You can start with:
"Dear Representative Name Here:
As a student, I am interested in how you are involved within the government. I wish to inquire about the committees that you currently served in, whether it is state or local. It will be very useful for me to study someone with a local perspective.
I also wish to find out about what types of bills you have submitted. These bills may pertinent towards my own studies, especially if they involve any of the local issues.
I would furthermore request that you enclose in your reply a copy of a speech that you have made in Congress. It is good to learn from your stances directly.
Thank you for your consideration.
Sincerely,
Your Name"
There's not enough rhetoric but this is a start.
You'd be paying for it for a little over 33 months.
(I hope that's what you were asking since you didn't specify)