Billionaire sues Trump crypto firm

The lawsuit claims that World Liberty Financial installed secret tools to prevent Sun from selling his tokens once they became tradable.

Sun, who spent $45 million on the venture's digital coins, alleges he has been blocked from withdrawing assets worth up to $1 billion.

The legal action comes amid an escalating feud between the Trump-backed project and one of its most prominent supporters.

World Liberty is also facing criticism from other investors over a perceived lack of transparency and mounting financial losses.