1988 R +14
1992 R +10
1996 R +9
2000 R +9
2004 R +6
2008 R <1
2012 D <1
The trend goes back a quarter of a century. Actually it looks like it sped up again until this past cycle. I think it becomes like New Hampshire or at the most New Jersey. Hopefully, we'll be able to make up for it somewhere else.
This is not indicative that the trend will continue, it could reverse or go in cycles in the future. I highly doubt it will be as Democratic as New Jersey (in the next 20 years) but I do think it could go as far as maybe Oregon.