A propos of nothing in particular, an electoral map of sorts.

I selected all the states where McCain is currently leading, if even by the narrowest of margins, and painted them red (using the gadget at 270towin.com). To be generous and cautious, I actually used the pollster.com numbers from a week ago, when he was still leading in Missouri and North Dakota as well. And I selected the states that are absolutely foolproof safe for Obama and painted them blue.

These two selections count for almost exactly the same share of the Electoral College. These two selections represent roughly the same proportions of the US population.

A useful map, then, perhaps, to have at hand for two occasions:

a) Whenever someone harangues you about “the real America”, “heartland America” or “flyover country, where Joe Sixpack lives”.

Check: the Bos-Wash corridor with upstate NY and Vermont; Illinois; and the Pacific coast with Hawaii – together those states have as many Americans as all the even marginally red states together.

b) When you want to wonder at how unfavourable the underlying fundamentals of this race are for McCain.

Normally you start from a base level of reliable support, and then contest as many of the few remaining battleground states as you need to win. But this base level is just precariously low for McCain this year. Mostly because of a few givens: Bush’s unpopularity, the economic crisis and the loss of trust in the Republican brand on the economy, the unpopularity of the Iraq war. (And that’s not just “headwind”, as you’ll now find some conservatives describing it; it’s the result of Republican mismanagement.) But it’s also because of the Obama campaign’s willingness to reach far into red-state America and its access to the resources to do so, a testament of Democratic enthusiasm.

Either way, North Carolina, Virginia, Colorado and Florida are not part of the base level of support that Republicans can build on like they were in 2004. Which means that the Republican base level is as low as 185 Electoral College votes, rather than 249. And just 185 EVs? That’s so little that it barely counterweighs even the safest of safest blue states.

Again, nothing particularly newsworthy about any of this, but I still found it a pretty telling map.