The Environmental Planning and Information Council of Western El Dorado County, Inc. (EPIC) (defendant) published a newsletter criticizing the editorial policies of the Foothill Times, a local newspaper. The EPIC newsletter contained a list of businesses that advertised in the Foothill Times and suggested that EPIC’s readers might not want to support those businesses until the Foothill Times changed its editorial policies. Detmold Publishing Company (Detmold) (plaintiff), the publisher of the Foothill Times, brought suit against EPIC for intentional interference with the prospective economic advantage of another. EPIC filed a motion to dismiss. The superior court denied the motion. EPIC filed a petition for a writ of mandamus.