What government documents reveal about the 2020 census

Amid criticism, the Trump administration is facing lawsuits for adding a question about citizenship to the upcoming 2020 census. And the U.S. Commerce Department, which oversees the census, recently released more than a thousand pages of documents about its decision to include the citizenship question. NPR’s Hansi Lo Wang, who has been examining those documents, joins Hari Sreenivasan for more.