Prosecutors don't decide sentences in the United States. Judges decide sentences and in US Federal Government cases, the US Government issues sentencing guidel

Prosecutors don't decide sentences in the United States. Judges decide sentences and in US Federal Government cases, the US Government issues sentencing guidelines. These guidelines are usually used to determine how long a person goes to prison for. What prosecutors can do is recommend a sentence and let the judge know that a criminal cooperated. Cooperating typically reduces a criminal's sentance. Ultimately, Federal sentences are decided by three things: A) The laws of the United States. These can be changed by the United States Congress. B) The sentencing guidelines (https://www.ussc.gov/guidelines https://www.ussc.gov/guidelines) C) Prison Capacity (At some point, you cannot send anyone else to jail because the prisons are full)