The "encryption czar" of the United States, David Sacks, denied overdue service during the Warren review.

PANews reported on September 18 that after review by several U.S. lawmakers, a spokesperson for David Sacks, the U.S. artificial intelligence and Crypto Assets "czar," refuted claims that he may have exceeded the 130-day limit for "special government employees" (SGE). Sacks' spokesperson told CNBC on Wednesday that he carefully manages the number of SGE days to ensure he does not exceed the limit, and that these days do not need to be consecutive. Previously, Massachusetts Senator Elizabeth Warren and other U.S. lawmakers questioned whether Sacks had exceeded the number of days allowed for his short-term federal position. The group believes that because Sacks serves as a "special government employee" (a position with a maximum of 130 working days per year), he should disclose the number of days he has served since President Trump took office on January 20. As of Wednesday, 167 working days have passed since Trump took office (excluding U.S. public holidays). To stay within the limit of 130 days, Sacks would need to take at least 37 days off during this period.