A top House Republican is calling on President Joe Biden to impose sanctions or criminal charges against the Chinese Communist Party after the United States accused Chinese intelligence of being behind the Microsoft Exchange Server hack and other cyberattacks.

The U.S. and its allies blamed China’s Ministry of State Security for the massive hack against Microsoft this year, with the Justice Department also charging members of the Chinese intelligence agency over a separate global espionage campaign. However, the U.S. did not implement sanctions against China like it did against Russian intelligence hackers earlier this year over the Solarwinds attack, and it did not charge anyone related to the Microsoft hack.