Food aid for more than 40 million Americans is at risk of expiring at week's end. Republican leaders in Congress said it’s all or nothing Wednesday as they rejected a Democratic push for a temporary fix.

A funding lapse for food stamps, set to hit next week, became a new focus for Democrats on Wednesday as the partial government shutdown enters its fifth week with no resolution in sight. In a rare diversion from their single-minded focus on extending expiring health insurance subsidies,