 President Biden is proposing a cap on what the nation's larger landlords can charge for rent. NPR's Jennifer Ludden reports its latest effort by the White House to counter rising housing prices in the U.S. Biden's proposal would cap rent hikes at 5% for landlords with 50 or more units. If they went over that, they'd lose certain federal tax credits. The White House says it would apply only to existing units and last for two years, a bridge, officials say, until a boom in new construction adds to housing supply.