Adding a citizenship question could make the 2020 census tens of millions of dollars more expensive and less accurate, says NPR’s Hansi Lo Wang.

Adding a citizenship question could make the 2020 census tens of millions of dollars more expensive and less accurate, says NPR’s Hansi Lo Wang. https://t.co/NVubd7pBKA

— PBS NewsHour (@NewsHour) June 10, 2018