Inside TikTok's operation to win over Washington

With a giant billboard at Washington’s main train station, an army of influencers on Capitol Hill and ad campaigns in the political press, TikTok is pulling out all the stops as it fights for survival in the US capital.

The Chinese-owned video-sharing platform has been on a charm offensive to persuade Washington’s political elite it is a boon for millions of Americans — and not a security threat that needs to be neutralized.