Surprise! It was Wilbur Ross who pushed to add the citizenship question to the U.S. Census after the idea was pushed by Steve Bannon:

Newly produced documents by @CommerceGov show that Wilbur Ross sought to add citizenship question to Census on his own initiative for political reasons, not at DOJ’s request to help enforce the Voting Rights Act. This directly contradicts Ross’ testimony to Congress.

In a 3/26/18 memo, Ross claimed that DOJ “requested that the Census Bureau reinstate a citizenship question on the decennial census to provide…citizenship voting age population…to permit more effective enforcement of [Voting Rights Act]” /2 commerce.gov/sites/commerce…

At 3 separate congressional hearings in 2018 (March 20 & 22; May 10), Ross emphasized that DOJ initiated the request for citizenship question. At Ways and Means hearing on March 22, Ross said: “Because it is from the Department of Justice, we are taking it very seriously.”

In fact, the request came from Ross, not DOJ. On 5/2/17, Ross emailed the head of Commerce’s policy office asking: “I am mystified why nothing have been done in response to my months old request that we include the citizenship question. Why not?”

So he lied to Congress, among his other crimes.