The statement is assessed as highly likely to be true based on overwhelming and consistent evidence from multiple authoritative primary sources. Direct evidence includes an official letter from a U.S. House Select Committee to the cryptocurrency firm 'World Liberty Financial', demanding information about investments from the UAE and citing its connection to the Trump family. This is a definitive action that constitutes a congressional investigation. This primary evidence is supported by a formal press release from the committee announcing the inquiry.Furthermore, multiple high-credibility news outlets, including The Wall Street Journal, corroborate these facts. One report explicitly states that a 'top Democrat launches probe into a $500 million deal involving an Abu Dhabi sheikh and World Liberty Financial, a company with ties to Donald Trump.' Other sources confirm that members of the House Financial Services Committee publicly questioned the Treasury Secretary about this specific investment during a hearing. The evidence consistently supports every element of the statement: the U.S. House is the investigating body, the entity is a Trump-linked crypto firm, the investigation concerns a specific large investment from Abu Dhabi, and the amount is cited as $500 million. There are no contradictions among the provided sources.