Select saute or browning setting on a 6-qt. electric pressure cooker. Adjust for medium heat; add 1 tablespoon oil. Sprinkle chicken with salt and pepper. When oil is hot, brown chicken in batches. Add wine to pressure cooker. Cook 1 minute, stirring to loosen browned bits from pan. Press cancel. Return chicken to pressure cooker.
Stir mushrooms, red pepper, onion, and tomatoes, raisins and capers into pressure cooker. Lock lid; close pressure-release valve. Adjust to pressure-cook on high for 6 minutes. Quick-release pressure. A thermometer inserted in chicken should read at least 170°. Sprinkle with basil before serving. Serve with hot cooked couscous. Freeze option: Place chicken and vegetables in freezer containers; top with cooking juices. Cool and freeze. To use, partially thaw in refrigerator overnight. Heat through in a covered saucepan, stirring gently and adding a little water if necessary.