John McKinnon

The Har­vard-ed­u­cated Mr. Chew, who once in­terned at Meta Plat­forms Inc.’s Face­book, agreed to tes­tify vol­un­tar­ily and will be the sole wit­ness at the hear­ing, the spokesman said.

“Tik­Tok has know­ingly al­lowed the abil­ity for the Chi­nese Com­mu­nist Party to ac­cess Amer­i­can user data,” Rep. Cathy Mc­Mor­ris Rodgers (R., Wash.), who chairs the com­mit­tee, said in a writ­ten state­ment. “Amer­i­cans de­serve to know how these ac­tions im­pact their pri­vacy and data se­cu­rity, as well as what ac­tions Tik­Tok is tak­ing to keep our kids safe from on­line and off­line harms.”