DUBAI, United Arab Emirates (AP) — A court in Saudi Arabia upheld a 20-year prison term imposed on a Saudi aid worker who had criticized the government on Twitter, drawing a rare public rebuke from the U.S. in another sign of tension between the Biden administration and the kingdom. The ruling, confirmed late Wednesday, also upheld a 20-year travel ban on Abdulrahman al-Sadhan after his release. The case against him may have roots in an elaborate ploy that began in Silicon Valley and sparked a federal case against two Twitter employees accused of spying for Saudi Arabia. The men allegedly accessed the user data of over 6,000 Twitter accounts, including nearly three dozen usernames the kingdom had wanted disclosed. His case is the latest example of the continued crackdown against those who criticize the Saudi government and Crown Prince Mohammed bin Salman.