Not a single state in the country has an adequate supply of affordable housing for renters with extremely low incomes, according to a new study by the National Low Income Housing Coalition (NLIHC). The same shortfall is present in every major metropolitan area in the nation, researchers at the nonprofit organization found—showing just how dire the U.S. housing affordability crisis still is despite recent modest signs of improvement . The U.S. is facing a shortage of 7.2 million rental homes