A 20-year crime fighting career would pass in one day and the hero wouldn't show any signs of aging.
How about a John McClane/Jack Bauer buddy comedy? You could call it Geezer and the Spaz and cast a chimp in some kind of important role. Maybe as a lightly fictionalized Bush?
In a world, where both of their cars were totally underwater...
John McClane the lucky cop with a knack for improvisation from Die Hard, or John McClane the invulnerable embodiment of heroic ideals from Live Free or Die Hard?
To be a fair fight, it would probably have to be John McClane from LFODH.
Although the DH1 John McClane was far superior.
And then somewhere in the the third act, James Bond comes in and shoots them both?
"Yippee-ki-aye indeed, gentlemen"
So why would Jack Bauer have a problem with John McCain? Because he's nominally anti-torture?