The director of the U.S. Census Bureau announced his resignation following allegations that he supported an effort to get data released before the end of President Trump’s term in office.

Steven Dillingham announced his resignation on Monday, which will go into effect on Wednesday. The resignation coincides with the beginning of the Biden administration, even though Dillingham’s term isn’t up until the end of 2021. A farewell letter from Dillingham to the bureau staff was published on the bureau’s website.