In 1951, Congress enacted the Transportation of Gambling Devices Act. The Act, more commonly known as the Johnson Act, has been amended several times during the intervening years. Most notably, the Act makes it unlawful to knowingly transport a gambling device to a state where such a device is prohibited by law.
“New York City Launches Sweeping Investigation Into Polymarket and Kalshi” | The Wall Street Journal
August 12, 2026
By Kevin T. Dugan, Katherine Long “The New York City Council is investigating four prediction markets for alleged deceptive marketing