MATCH2, a randomized controlled trial, will test if the optimized CHW-delivered intervention can reduce both Hemoglobin A1c levels and blood pressure at eighteen months in persons with uncontrolled diabetes, as compared to a CDE-delivered group educational program. Follow-up six months after the completion of the intervention will evaluate the sustainability of any gains. MATCH2 will use precise measures of diet (food frequency questionnaires) and physical activity (accelerometry) to identify intermediate behaviors and processes that mediate significant improvements in glycemic and blood pressure control.