Which safe R states are most likely to become swing/blue states any time soon?

[Dr. MB]

Alaska, obviously... it's trending bluer by the minute

I could see Kansas becoming a Lean R state in ten or 20 years if Wichita and the KC suburbs become Democratic, but it will still be outnumbered by the Republicans.

South Carolina might go the way of its two neighbors eventually, but it will take longer. Mississippi's more likely than Alabama but I doubt it will go D anytime soon.

[Dr. MB]

Alaska, obviously... it's trending bluer by the minute

I could see Kansas becoming a Lean R state in ten or 20 years if Wichita and the KC suburbs become Democratic, but it will still be outnumbered by the Republicans.

South Carolina might go the way of its two neighbors eventually, but it will take longer. Mississippi's more likely than Alabama but I doubt it will go D anytime soon

what is your evidence for Alaska becoming blue?

Democrats have their best position in the state house since the early 90s, also margin of victory:

2000 – 30.5%
2004 – 25.6%
2008 – 21.5%
2012: 14%
2016: 14.7%

Also, in 2016 Trump barely cracked 50%.