A bipartisan group of lawmakers want Google to cut ties with a Chinese telecommunications company regarded by U.S. officials as an espionage threat.

“Chinese telecommunications companies, such as Huawei, have extensive ties with the Chinese Communist Party,” Sen. Marco Rubio, R-Fla., and Sen. Tom Cotton, R-Ark., wrote in a letter signed by three other colleagues. “As a result, this partnership between Google and Huawei could pose a serious risk to U.S. national security and American consumers.”