By Chris Casteel Staff Writer ccasteel@oklahoman.comDUNCAN — Democrat Drew Edmondson accused the Fallin administration of ravaging rural Oklahoma, and Republican Mick Cornett lamented the “broken model” of funding city services, as tax and spending matters dominated a gubernatorial forum here. Sponsored by the Oklahoma Academy, the forum on Thursday featured candidates from all three parties and questions geared toward policy wonks, including ones about tax code reform and rural health care. Cornett, who spent 14 years as Oklahoma City mayor, devoted most of his tax talk to the municipal angle.Read more on NewsOK.com