The restrictions would be similar to those placed on Huawei, another Chinese tech giant, which prevent it from purchasing American software and semiconductors without approval from Washington.

Background: Using Hikvision technology, China has built what amounts to a police state in the northwestern region of Xinjiang, home to the Uighurs, a mostly Muslim ethnic minority.

Related: President Xi Jinping has urged China to begin a modern “long march,” invoking a turning point in Communist Party history to suggest that Beijing has abandoned hopes of a trade deal in the near term.

Democratic calls for impeachment grow

Speaker Nancy Pelosi is to update lawmakers today on the House’s investigations of President Trump. More liberal Democrats have called for an impeachment inquiry, but Ms. Pelosi has repeatedly warned against the divisiveness of such a strategy.