U.S. Census Bureau director Steven Dillingham said in a statement that he would resign on Wednesday, the day Trump leaves the White House and President-elect Joseph Biden takes office.
Internal documents obtained earlier this month by a House committee show that Census Bureau officials don't see the apportionment numbers being ready until days after Biden is inaugurated on Jan. 20.
A federal judge on Thursday agreed to impose financial sanctions against the Trump administration for failing to produce hundreds of documents during litigation over whether a citizenship question could be added to the 2020 census.
The 2020 census is the first in which most people are being encouraged to answer the questions online, though people can still answer the questionnaire by telephone or by mailing back a paper form if they prefer.