looking for in our next president? certainly someone who is very, very, very old. >> reporter: senator john mccain two months after winning the 2008 republican party nomination cracking jokes on "saturday night live." one of countless opportunities the senator took to poke fun at himself. >> i've also opposed federal water projects, even when they benefitted my state. that's why thanks to me, 15% of arizona citizens must get their drinking water from cactus. >> reporter: he was the first sitting senator to host "saturday night live" and returned to the show many times. his comic timing always impressive. mccain played everything from a creepy husband -- >> you're so lovely. >> oh, oh. >> i could watch you for hours. >> oh my god, david, how did you get in here? >> the door was open, angel. shall i loofah your back? >> reporter: to a charactergran