General link for all state and federal elected officials and agencies. CLICK
Congress.gov is the official website for U.S. federal legislative information. You can search for legislation from the current Congress or previous Congresses.
PopVox allows you to read bills in Congress and provide your feedback directly to elected officials on those bills.
The vast majority of prisoners are in state custody persuant to state laws. Your US representatives have little control or power over actions by the state's individual justice systems. If your question or concern is related to a state prisoner, state prison or jail please contact your own state legislators for assistance.