A House committee has provided a trove of emails and documents detailing how Trump and his allies sought to add a citizenship question to the 2020 census in order to help Republicans win elections. The documents’ release came as the Committee on Oversight and Reform wrapped up a years-long investigation, concluding senior Trump administration officials added the citizenship question in order to deliberately exclude noncitizens from the count. The Census Bureau estimates 18.8 million people were left out of the most recent census, with communities of color undercounted at far higher rates than in previous censuses.

This week, the committee’s Democratic chair, Carolyn Maloney, introduced the Ensuring a Fair and Accurate Census Act. She said, “It is clear that legislative reforms are needed to prevent any future illegal or unconstitutional efforts to interfere with the census and chip away at our democracy.”