Place soup ingredients in slow cookerCover and cook on high for 3-4 hours or low for 6-8Using forks or a potato masher mash the tomatoes into smaller pieces and shred chickenPreheat oven to 425 degreesStack tortillas and cut into thin stripsToss with olive oil and garlic powderPlace in single layer on baking sheet and bake for 6-8 minutes until crispy and starting to brownServe chili in bowl topped with tortilla strips as well as cheese, cilantro and sour cream or as desired