evidence: Housing Harris is calling for the construction of 3 million new housing units over four years, which she says will ease a "serious housing shortage in America." She also plans to promote legislation creating a new series of tax incentives for builders who construct "starter" homes sold to first-time homebuyers. She also wants a $40 billion innovation fund — doubling a similar pot of money created by the Biden administration — for businesses building affordable rental housing units. Harris also wants to speed up permitting and review processes to get housing stock to the market more quickly. WATCH: Why lower-income renters in Austin are struggling to find affordable housing Harris further says she can lower rental costs by limiting investors who buy up homes in bulk, as well as curbing the use of price-setting tools that she argues encourage collusion to increase profits among landlords. She also wants to expand a Biden administration plan providing $25,000 in potential down payment assistance to help some renters buy a home, so that it will include a much larger swath of first-time home buyers across the country.