That's true, but I don't think Michigan has been significantly more elastic than Georgia in recent years (don't have the data in front of me at the moment). And at least in Georgia there is a significantly growing urban population (the Atlanta metropolitan area has nearly half the population of the state and growing, although its suburbs are still split between Democrats and Republicans) and a significantly growing Hispanic population that should at least warrant some national coverage (if not equivalent to Michigan). And yet the only thing I can find on it are the occasional blog postings and a handful of clips of MSNBC's Chuck Todd putting forth the hypothesis it could be competitive in 2016 and 2020. As far as I can tell, it hasn't been reported on Fox, CNN is largely ignoring it, and so on.
So, I've been following up on this by calculating the standard deviation of the deltas between the state's vote and the national average in each election since 1988, and made two charts with it (graphic attached). Here's what I found:
So my earlier criticism of the Michigan-Georgia comparison, if you adjust for the national vote, wasn't as well-founded as I thought. Michigan averages around +5.3D, while Georgia somewhere around +10.9R. Michigan is more steady long-term, with a SD of 2.39 against Georgia's 3.22, but that's nowhere near enough to make up for the difference in averages.
Montana is still plain weird and defies analysis. It averages +14.2R yet has 3 major statewide offices held by Democrats, including recent wins that everybody incl. Nate Silver thought would go the other way (the last Senate race).
From this analysis, you might think that Democratic hopes to put Texas in the swing category by 2020 are crazy, but remember the favorite son effect for the Bushes. Of the three Southern/Southwestern states we talked about potentially becoming tossups, Arizona is the best bet. Well, that and North Carolina, but we are already considering that a tossup state.
Virginia is the most steady pro-Democratic trend in this analysis. Unfailingly since 1988, it's gotten more Democratic. The Republican inroads in the Midwest haven't paid off yet, but by this analysis it looks like Colorado and Pennsylvania are about equal at +1.5D and if trends hold Colorado will be a solid-D state. Pennsylvania, though close to the tipping point, is one of the least variable states on the list. At this rate, it might take the Republicans until 2024 or later to make it a true swing/tossup state. Wisconsin might be a better strategy just based on the variability.
What about the effect of all the changes to voting rules the GOP is making/trying to make?
Some analysts (I think they were on CNN when I saw them, I don't have an article reference at the moment) suggested that these efforts make maybe 1-2% difference at most. The explanation given was that any real effort at reducing voting hours by one party is going to incite a group to vote at no matter the cost against the guys who are doing it, so the effect is mitigated.
Myself, I'd like to see some verification of the theory too. I'd like to think there is strong popular support for insuring everyone can cast their ballot, but you'd never know.
I thought that too once. Then I moved to Florida. Dear God make it stop.
I'll ask my 8-ball then make the wrong decision because it will lie to me.
I would prefer swing state Texas to Republican Texas.
I would too, but not because I'm a hyper-partisan who wants the Republicans to fail at every opportunity. Historically, the most populous states tended to be swing states and so campaigns would focus on the larger states. Right now, of the 5 most populous US states, only Florida is seriously contested. California, New York, Texas, and Illinois are all (mostly) safe for one party. If you look at the next 5, Pennsylvania, Georgia, and Michigan are mostly safe, while Ohio and North Carolina have at least voted for different candidates nationally in the last few elections.
Long story short, of the top 10, only 3 have voted for different parties in the last few elections. It's relatively static.
(Side note: I found and fixed one error with the spreadsheet before uploading this pic, I hope there aren't any more. If you guys see something odd, point it out and I'll double-check the calculation.)
EDIT: I didn't refresh the page while writing this and I didn't see metatron's post until now. I'll try to respond to some of the points made there later tonight, have some work to take care of in the meantime.