"There are key differences with the plan that passed the House. The House bill calls for two casinos, and puts no restrictions on location. Most significantly, the House measure, with the strong backing of House Speaker Robert A. DeLeo, also allows up to 750 slot machines at the state’s two horse-racing facilities and two former dog tracks. Negotiators do not have much time to work out the differences, with the legislative session scheduled to end July 31." They have only 10 days, if they're going to make that deadline.