WASHINGTON — Early last year, Senator Marco Rubio, a Florida Republican, and Jake Sullivan, President Biden’s national security adviser, met to discuss China and industrial policy. During their conversation, Mr. Rubio raised his worries about Beijing’s influence over TikTok, the Chinese-owned viral video app.
Under former President Donald J. Trump, TikTok had been embroiled in questions over whether it could compromise U.S. national security by sharing information about Americans with China. The issue, which was never resolved, was inherited by the Biden administration. Mr. Sullivan “shared our concerns,” Mr. Rubio said in an interview.
Their discussion was one of many that lawmakers have quietly had with government officials about TikTok since President Biden took office. Senator Mark Warner of Virginia, the Democratic chairman of the Intelligence Committee, said he had also been in “active conversations” with the administration about the app, which is owned by the Chinese company ByteDance. And regulators and other government officials have been weighing what to do about it after scrutinizing other Chinese firms.