WASHINGTON, Jan 13 (Reuters) - Two Democratic lawmakers

on Monday urged Congress and President Joe Biden to extend a

Jan. 19 deadline for China-based ByteDance to sell the U.S.

assets of TikTok or face a U.S. ban.

The Supreme Court held arguments Friday on Tiktok and

ByteDance's challenge to the law. A lawyer for the companies,

Noel Francisco, said it would be impossible to complete a sale

by then of the short video app used by 170 million Americans and

said the site would quickly go dark and "essentially the

platform shuts down."