side, john mcgau, former director of the secret service under president bush, and david valdez, who was white house photographer. gentlemen, i'm so honored to have both of you on. thank you so much, and my condolences to both of you. john, i'm going to start with you. >> thank you. >> all right, sir. >> you oversaw the president's security. his protective call sign was timber wolf. you were by his side day in, day out. what was that like? >> well t w, it was a job, an important one. i knew that whatever we did could affect his well being and came -- started in 1980 in the campaign. i was with him then as the vice president and as the president, back two or three times. but for the most part of 13 years, i was there and just honored to have served the country in this manner. >> yeah. >> and while it's a tough day and a tough week that we lost him, it was clear to me in