Kellyanne Conway, the former senior Trump aide, is being paid by the conservative Club for Growth to advocate for TikTok in Congress and has had at least 10 meetings with lawmakers in recent months about the app, according to three people familiar with the meetings.

Conway’s work comes as TikTok faces a groundswell of opposition in Congress. The House is poised to vote this week on a bill that would force the sale of the app by its Chinese owner or face a ban from app stores. Last week, users of the app followed a TikTok rallying cry and bombarded Congress with calls to oppose the measure. President Joe Biden said on Friday he would sign the bill if it passed.

Both Conway and Club for Growth confirmed the working relationship. A spokesperson for TikTok declined to comment.