edwards has declared a state of emergency and said that 13 national guard troops are being mobilized. watts. >> we've had a number of threats this season, we have been blessed. when harvey went left and irma went right. that is not what we anticipate out of nate. everyone should take this very seriously. >> trace: very seriously. this has been a phenomenally busy hurricane season. now, all five living former u.s. presidents will headline a hurricane concert in texas. the deep from the heart concert will go to help relief efforts for hurricanes harvey, irma, and maria. jackie ibanez is here to tell us about the huge undertaking. >> mother nature doubt that major 1-2-3 punch to the u.s. first harvey, irma, and then maria. five former presidents are asking for your help in getting hurricane victims back on their