The Biden administration has identified core impediments to better nursing home care in its proposed overhaul of the industry, but turning aspirations into reality will require a complex task: mandating adequate staffing levels for all homes without bankrupting those that can’t afford far higher labor costs. President Joe Biden’s proposals for the nation’s 15,000 skilled nursing facilities — released in advance of his State of the Union address Tuesday night — would lead to the most substantial increase in federal nursing home regulation since Congress reformed the industry in 1987. The center…