President Joe Biden's campaign has joined TikTok, despite the app being banned on most US government devices over security concerns.
His campaign launched its account during the Super Bowl on Sunday evening.
In a launch video, Mr. Biden was quizzed about his preferences for the big game.
The president signed legislation in 2022 blocking most federal government devices from using TikTok.
Several states have also adopted the measure.
Lawmakers from both sides of the aisle have called for the app, owned by a Chinese company to be banned in the US.