The Supreme Court on Tuesday ruled that the Trump administration can end census field operations early, batting aside a lawsuit that warned the truncated schedule will lead to minorities being undercounted in the crucial once-a-decade head count.

Still, the decision was not a total loss for the plaintiffs, who managed to get two extra weeks of counting people as the case challenging the U.S. Census Bureau’s decision to end the census in September made its way through the courts.

The Supreme Court justices’ ruling came as the nation’s largest statistical association, and even the bureau’s own census takers and partners, have been raising questions about the quality of the data being gathered — numbers that are used to determine how much federal funding is allotted to states and localities, and how many congressional seats each states gets.

Associate Justice Sonia Sotomayor dissented, saying “respondents will suffer substantial injury if the Bureau is permitted to sacrifice accuracy for expediency.”

President Donald Trump’s administration had asked the nation’s high court to suspend a lower court’s order allowing the 2020 census to continue through the end of October. The Trump administration argued that the head count needed to end immediately to give the bureau time to crunch the numbers to meet a year-end deadline. Congress requires the bureau to turn in by Dec. 31 the figures used to decide the states’ congressional seats — a process known as apportionment.

By sticking to the deadline, the Trump administration would end up controlling the numbers used for the apportionment, no matter who wins next month’s presidential election.

A coalition of local governments and civil rights groups had sued the Trump administration, arguing that minorities and others in hard-to-count communities would be missed if the census ended early. They said the schedule was cut short to accommodate a July order from Trump that would exclude people in the country illegally from being counted in the numbers used for apportionment.

Last month, U.S. District Judge Lucy Koh in San Jose, Calif., sided with the plaintiffs and issued an injunction suspending a Sept. 30 deadline for finishing the 2020 census and a Dec. 31 deadline for submitting the apportionment numbers. That caused the deadlines to revert back to a previous Census Bureau plan that had field operations ending Oct. 31 and the reporting of apportionment figures at the end of April 2021.

When the Census Bureau, and the Commerce Department, which oversees the statistical agency, picked an Oct. 5 end date, Koh struck that down too, accusing officials of “lurching from one hasty, unexplained plan to the next ... and undermining the credibility of the Census Bureau and the 2020 Census.”

An appellate court panel upheld Koh’s order allowing the census to continue through October but struck down the part that suspended the Dec. 31 deadline for turning in apportionment numbers. The panel of three appellate judges said that just because the year-end deadline is impossible to meet doesn’t mean the court should require the Census Bureau to miss it.

The plaintiffs said the ruling against them was not a total loss, as millions more people were counted during the extra two weeks.

“Every day has mattered, and the Supreme Court’s order staying the preliminary injunction does not erase the tremendous progress that has been made as a result of the district court’s rulings,” said Melissa Sherry, one of the attorneys for the coalition.

Besides deciding how many congressional seats each state gets, the census helps determine how $1.5 trillion in federal funding is distributed each year.