When was the last election where the Dem could have conceivably won OK?

[Frozen Sky Ever Why]

I'm not talking the specific match ups that occurred in IRL, just the last year in which it would have been possible for any realistic Dem nominee to have carried it. Carter came extremely close in 1976, probably hampered only by his stance on energy hurting him in the Tulsa area. In 1988 it swung quite heavily Democratic, though Dukakis still lost it by 17 points. Obviously a candidate like Dukakis could never have carried it, but let's say Gore or Bentsen was the nominee in 1988 and the economy tanked, would it have been possible for the Dem to squeak out a victory then?

[Mr.Phips]

Probably 1992 or 1996.

[Blow by blow, the passion dies]

1996, if a pro-choicer was the Republican nominee, causing Buchanan to run third-party

[Zedonathin2020]

I agree with the other two responses in saying it would've been either of the Bill Clinton elections