The Trump administration on Thursday removed the Internal Revenue Service's top lawyer and rolled out plans to downsize nearly 20 percent of the agency's staff as billionaire Elon Musk's U.S. DOGE Service seeks access to sensitive taxpayer records, according to five people familiar with the matter. William Paul, a career official named to the position in January, will be replaced by Andrew De Mello, who was nominated to be the Education Department's inspector general during Trump's first term, three of the people said. The people spoke on the condition of anonymity because they were not authorized to speak with the media.