House Republican leaders and California’s senior senator announced Monday a new attempt to pass legislation that would increase water deliveries to San Joaquin Valley agribusiness and Southern California.

The 90-page proposal was added to a water infrastructure bill that Congress is expected to vote on this week before adjourning for the rest of the year. The deal sets Sen. Dianne Feinstein (D-Calif.) on a collision course with her colleague, Sen. Barbara Boxer (D-Calif.), who blasted the proposal as a poison pill and vowed to do everything she could to stop it, including halting all action in the Senate unless it is removed.