A trial challenging the Trump administration’s decision to add a citizenship question to the 2020 census kicked off in a Maryland federal court Tuesday, becoming the third such trial in a larger legal fight that has shown no signs of tamping down.

The trial in the U.S. District Court for the District of Maryland comes exactly one week after a federal judge in New York struck down the citizenship question. It also started on the same day U.S. Solicitor General Noel Francisco signaled the government will ask the U.S. Supreme Court to review that New York ruling. Meanwhile, another federal judge in California is reviewing a separate legal challenge to the question.