The changing map

[°Leprechaun]

All states have gone D at least once
since 1964.

Red was won by Clinton in 2016.
Green was won by Carter in 1976.
Grey was won by Johnson in 1964.
That leaves five yellow states:
MI&IA which Obama won twice
and AZ which B Clinton won in
1996 and which is now considered
a swing state, and MT&IN.
MT in 1992 IN in 2008.

Where will the Democrats do better in the future? ...MI,PA and WI of course but where else?
They need to expand... OH? IA? FL? GA? NC? and last but not least AZ? any others?