TRENTON, N.J. (AP) — New Jersey’s largest state worker union has filed a claim of unfair labor practices against Gov. Chris Christie’s administration, saying it’s refused to negotiate over health care costs.

Union leader Hetty Rosenstein says the union has met six times with the governor’s staff, but they’ve refused to discuss health care.

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The Communications Workers of America filed the complaint with the state Public Employee Retirement Commission late Thursday, claiming the governor is violating state law by refusing to negotiate.

Christie wants state workers to pay a greater share of their health care costs. He wants to do it through legislation rather than collective bargaining.

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The Republican governor has made a national name for his fights with union leaders, especially teachers. His office had no immediate comment on the filing.

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