Add the beef mixture to the slow cooker. Add in the chili powder, cumin, ground chipotle, and ground cayenne pepper. Mix in the Worcestershire sauce, liquid smoke, kidney beans, diced tomatoes, and tomato sauce.
2 tablespoons chili powder, 1 tablespoon cumin, 1/2 teaspoon ground chipotle, 1/2 teaspoon cayenne pepper, 1 tablespoon Worcestershire sauce, 1 tablespoon liquid smoke, 14 ounces kidney beans, 28 ounces diced tomatoes, 15 ounces tomato sauce