Nate Silver has way more than you'd probably care to learn at the moment on Marco Rubio's presidential electability (a brutally short translation of Silver's piece: Who knows?), but this passage is exceptionally noteworthy:
Among Republican presidential nominees since 1960, in fact, only the extraordinarily conservative Barry Goldwater ... rates as being more conservative than Mr. Rubio.
It's noteworthy for two reasons. One, it rather nicely bookends ultraconservatism's chronological rise and much-anticipated fall, already in observable progress; and two, it perhaps alleviates the often acute pain that comes with the habitual monitoring of today's maniacal Republican Party--just knowing, that is, that anything that takes 50 years to get here won't go away tomorrow, but rest assured, go away it will (see reason #1).