Republican Senator John Curtis on September 21, 2026, called on the Senate to launch an investigation into Donald Trump Jr. and Hunter Biden and to summon both to testify.

Focus on Crypto Projects and Prediction Markets

In his letter, Curtis specifically pointed to the promotion of family crypto projects, connections to prediction markets, foreign business deals, and the receipt of expensive gifts by Donald Trump Jr.

Mention of Party Organized by Umar Kremlev

The senator also mentioned a lavish wedding party on a private island, which he said was organized for Trump Jr. by Umar Kremlev.