Let's take a look.
You can listen to the full interview in this piece at @thenation:
thenation.com/article/exclus…
And @delong has helpfully transcribed it all here, if you'd rather read it:
bradford-delong.com/2017/03/lee-at…
That's a separate issue from whether the GOP *used* to have a southern strategy -- again, which Atwater frankly admits -- but historians have taken issue with that claim.
From @CrespinoJoe's In Search of Another Country:
Just this week, political scientists @AngieMaxwell1 and Todd Shields published a terrific new book that makes a convincing case for a "Long Southern Strategy" that linked the old and new strategies of the GOP. amazon.com/dp/B07RWP3D3V
Even if you're inclined to trust Lee Atwater that the Reagan strategy was wholly unconnected to the "old southern strategy," @DineshDSouza, then you should also trust Lee Atwater when he says the "old southern strategy" was quite real.