Senate Republicans on Thursday blocked an attempt to reverse a little-noticed provision from their tax and spending cuts law that professional gamblers warn could be the end of their industry. Democratic Sen.

Nevada Democrat Catherine Cortez Masto sought to pass legislation that would restore full deductibility of wagering losses.

Businesses benefit from Senate changes that would make permanent a series of breaks that had been offered only temporarily in a House version, as well as a more generous break for companies in