Prediction markets have soared to $28 billion in value, driven by a surge in wagers on sports such as the NFL and NBA. As bets skyrocket—more than $6 billion in December alone—states are challenging federal control over the gambling industry.

While the U.S. government ceased operations on Wednesday, stock markets soared, with one benchmark index breaking its previous record. Traders now predict the shutdown will stretch about two weeks, reflecting an average duration seen in past governmental stoppages.

Donald Trump Jr. has embarked on a venture advising companies, expanding his reach well beyond the political stage. From mixed martial arts to drone technology, he is paid to provide counsel in a variety of industries.