Indeed, it is more likely to get put into place in general elections if it is put in for primaries first, where it has the advantage of offering for primaries an advantage that has so far been reserved for caucuses. So one avenue for getting started is as a way to replace traditional caucuses in states where they have fallen out of favor.
Indeed, the institutionally easiest way to get a second-preference IRV adopted would be in a so-called "firehouse caucus", which is just an election but run by the party rather than the regular board of elections system. I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.
This: "Introducing IRV into the general election would make the Primary superfluous."
... claims far more than this: "So, under alternative voting you can have a Louisiana Primary."
You can have a Louisiana primary, but that does not make the primary superfluous, since the primary purpose of the primary is to select the party nominee by a more democratic process than branch membership committee selection or central party committee selection.
You cannot render something superfluous while failing to accomplish its primary task. I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.
