US lawmakers plan to impose nationwide ban on TikTok due to national security concerns.
The Joe Biden administration has asked the Chinese owner to sell their stake in the app.
TikTok CEO was grilled before a Congressional committee in Washington.
Lawmakers allege that Chinese government has access to users' data.
The legislation has largely received bipartisan support.
ByteDance-owned platform has been asked for divestment over national security concerns.
TikTok has spent over $1.5 billion on data security efforts to satisfy US government's concerns.
Democrat leader Alexandria Ocasio-Cortez protested against the ban
TikTok CEO said the app is global in nature, headquartered in Singapore and Los Angeles, and not available in mainland China.
The lawmakers asked how frequently he was in contact with the Chinese government.