TOPEKA, Kan. (AP) — A Kansas advocacy group says the state has failed for four years to comply with targets for delivering services to developmentally disabled people and may be violating federal law by providing only partial benefits to some. The Topeka Capital-Journal reports the Disability Rights Center believes 3,300 developmentally disabled Kansans who qualify for Medicaid services continue to be denied aid. The group says the state also left empty between hundreds of slots it was obligated to fill from 2009 to 2013. DRC director Rocky Nichols says states must follow through on promises to the federal government to serve a set number of people, but Kansas hasn't. He says it's also not legal to maintain a second-tier list for the underserved.