Harbinger Capital Partners has sued Dish Network Corp. and its Chairman Charles Ergen, seeking at least $1.5 billion for allegedly trying to strip the hedge fund of its control of bankrupt wireless company LightSquared, Reuters reported yesterday. The lawsuit filed in a Colorado federal court on Tuesday accused Ergen of engaging in fraud and of violating a federal anti-racketeering law, according to court documents. Harbinger controls LightSquared, which has been mired in chapter 11 bankruptcy since 2012, and Ergen is LightSquared's largest creditor.