In a dramatic turn of events, President Donald Trump announced on Thursday that his administration would not undertake a new push to put a citizenship question on the 2020 census after the Supreme Court blocked the question last month. The decision is a major victory for voting and immigrant rights groups, who argued that the question would depress response rates among immigrant communities and jeopardize the accuracy and fairness of the entire decennial census. However, Trump’s decision could still pose problems for voting rights.