The pending marriage of Eldorado Resorts and Caesars Entertainment may spell the end for 40-year-old Bally's in Atlantic City. Eldorado's $8.5 billion acquisition of Caesars will give the combined company four of Atlantic City's nine casinos, including Tropicana, Caesars, Harrah's and Bally's. New Jersey regulators are expected to force Eldorado to exit one of its...