Even while warning about national security and human rights abuse, the U.S. government across five Republican and Democratic administrations has repeatedly allowed and even actively helped American firms to sell technology to Chinese police, government and surveillance companies, an Associated Press

U.S. lawmakers have tried four times since September last year to close what they called a glaring loophole: China is getting around export bans on the sale of powerful American AI chips by renting them through U.S. cloud services instead.

But the proposals prompted a flurry of activity from more than 100 lobbyists from tech companies and their trade associations trying to weigh in, according to disclosure reports.

The result: All four times, the proposal failed, including just last month.

Under the cloud services loophole, Chinese companies barred from accessing cutting-edge chips can use Microsoft Azure or Amazon Web Services overseas instead to train their AI models. Microsoft and AWS also both advertise the capacity to store video surveillance footage on their cloud services for Chinese customers.