Kucinich, a Democrat who is a member of the House Committee on Oversight and Government Reform, sent a letter Friday to Gates asking for a visit with Pfc. Bradley Manning.
Manning is being held in a Marine Corps brig in Quantico, Va.
Kucinich says he is concerned about reports of Manning's treatment while in custody. Manning's lawyer has filed a complaint with the Quantico commander about the conditions Manning is being held under.
Kucinich's letter: http://kucinich.house.gov/News/