This is what dictators and tyrants do.
"The ACLU said the new evidence reveals that the idea originated with Thomas Hofeller, a Republican redistricting specialist, who wrote in letters and memos that the question would create an electoral advantage for "Republicans and Non-Hispanic Whites." He helped ghostwrite a draft of the Justice Department letter, which adopted his rationale and some of the actual wording, the ACLU said.
Getting better citizenship data, Hofeller argued in newly disclosed documents, would help Republican legislatures create legislative and congressional district maps with fewer Latinos, who tend to vote for Democrat
https://www.nbcnews.com/politics/supreme-court/trump-administration-misled-courts-about-origin-plans-add-citizenship-question-n1012096