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COLUMBIA, S.C. (AP) -- The director of South Carolina's Department of Social Services says she won't step down.

Director Lillian Koller told reporters Wednesday she doesn't think her resignation is necessary and feels there is more work to be done.

Koller spoke after testifying before a Senate subcommittee created to investigate the agency. Koller told lawmakers she wants more fulltime positions to help handle cases around the state and also wants to regionalize county DSS offices to provide a better network to start cases.

Democratic state Sen. Joel Lourie has called on Gov. Nikki Haley to fire Koller. On Wednesday, Lourie pressed the director on why the agency has not sought more money in its budget request. Koller says she can fund the positions and just needs people to fill them.

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