Chair of Contra Costa Republican Party to speak at April 16 dinner Jeff Burns, chairman of the Contra Costa Republican Party, will be the guest speaker at the Republican Club dinner on Tuesday, April 16, at 5:15 p.m. in the Event Center’s Tahoe Room. Dinner, catered by Creekside Grill, will be a choice of grilled salmon or homemade chile rellenos with Spanish rice and beans (vegetarian