Protesters holding signs about the 2020 census gather outside the Supreme Court in Washington, D.C., in 2019.

As the Supreme Court justices hear oral arguments over the 2020 census citizenship question, protesters have gathered outside the building in support of a fair and accurate census and demanding to not include the controversial question in the next census. Tuesday, April 23, 2019, Washington, D.C. (Photo by Aurora Samperio/NurPhoto via Getty Images)