In a large sauce pan, heat the oil over medium heat. Add the remaining crushed garlic, chopped onions and red bell pepper. Cook about 5 to 7 minutes, or until the vegetables are tender. Add the cooked and shredded chicken, tomato sauce, tomato paste, reserved chicken (liquid) broth, capers, salt, pepper and cumin. Cover and cook on low for about 10 minutes, adding more broth and seasoning if needed, stirring occasionally.