TOPEKA, Kan. (AP) — Kansas is suing the federal government to obtain documents related to planning by President Barack Obama's administration to move prisoners from Guantanamo Bay, Cuba, to Fort Leavenworth. Attorney General Derek Schmidt filed the lawsuit Friday in federal court in Kansas against the U.S. Department of Defense. Schmidt's office filed a freedom of information request in December and said in the lawsuit it has not received any records. The Democratic president's campaign promise to close the prison for terror suspects in Cuba has been blocked by strong congressional opposition. The Defense Department last year surveyed seven potential sites for housing the prisoners, including Fort Leavenworth. Schmidt and other Kansas Republicans have strongly condemned the idea. A Defense Department spokeswoman declined comment.