talk to the Congress about passing a law that anyone in the government must not use a private server.

Any government employee, particularly those with access to classified material, must use the government server, NOT a private server. This is regardless of party, gender, age, race, and how much money a person has. I understand that it is policy, but it should be a law and, if broken, there should be punishments. The government provides a server, paid for by the taxpayer, and there is no excuse for using your own server.