Former President Donald Trump has shifted his position to support TikTok, contrasting his prior stance and criticism of Meta's Facebook.

Trump's change comes amidst the House preparing to vote on legislation that could lead to TikTok's sale or ban in the US.

The Protecting Americans from Foreign Adversary Controlled Applications Act may pass the House but encounter hurdles in the Senate.

Lobbying efforts against the potential TikTok ban include Trump's former aide Kellyanne Conway and Republican donor Jeff Yass.

The American Civil Liberties Union has raised free speech concerns over the bill, while President Biden is prepared to sign it should it pass.

TikTok has mobilized users to oppose the bill, but this has reportedly overwhelmed lawmakers with calls, adding to the controversy.