WASHINGTON — The law firm that once defended Hunter Biden against federal gun and tax indictments wants to see the pardoned former first son’s correspondence with friends or Democratic Party donors as part of a breach of contract case meant to recoup unpaid legal debts . Winston & Strawn attorneys argued in a Monday court filing that the Biden scion had “engaged in substantial efforts on his own to try to get third parties, friends, and donors to cover his legal fees,” which by Hunter’s own