By Liam Dillon, Los Angeles Times Harris is calling for a rapid increase in home construction, $25,000 in down-payment assistance for first-time homebuyers and restrictions on corporate landlords. Trump is relying on elements of his immigration and economic agenda to affect the housing market. With would-be first-time homebuyers struggling to afford a mortgage and tens of millions of tenants across the country facing high rents, housing affordability is becoming prominent in a U.S.