The nation is spending about $46 billion less than what it needs to keep up its school buildings, according to a report Wednesday that pointed out disparities in state support for infrastructure. The report by a trio of school facilities groups said the country needs to keep better track of the state of its schools and find new funding sources for their upkeep so that local districts that now bear the heaviest funding burdens don’t have to divert money from instruction. “U.S. public school infrastructure is funded through a system that is inequitably affecting our nation’s students and this has...