Budgets for public housing authorities - city and state agencies that provide subsidized housing and vouchers to local residents - would be among the hardest hit. Under the preliminary budget, those operational funds would be reduced by $600 million, or 13 percent. Funds for big-ticket repairs at public housing facilities would be cut by an additional $1.3 billion, about 32 percent. That could have a major quality-of-life effects on the low-income families who rely on public housing: Tens of billions of dollars in backlogged repairs already plague the country's 1.2 million public housing units, according to a 2010 HUD report.