Hermit wrote:1960 & 1964
1964 & 1968
1968 & 1972
2004 & 2008
64: A Kennedy newly assassinated, Johnson capitalized on sympathy. Goldwater's regressive economic platform wasn't going to make a dent (but his conservatism would form one of the 2 pillars of the future GOP - the other being racism).
68: A Kennedy newly assassinated, no Johnson figure to channel the sympathy (he'd removed himself from the running). Partial two-term effect, even though Johnson only served 1 full term. Vietnam War has also badly fractured the Dem party. Some of the most sweeping reforms in US social and economic history under Johnson now made liberals think hard about their allegiances. Southern Strategy already underway since the early 60s, has now metastasized into the de facto Republican party doctrine. At its core is opposition to civil rights reforms, under the guise of "states rights". Racist dogwhistling will now be front and center in GOP campaigning for eternity. Biggest party affiliation shift since the pre-Civil War era, as racists abandon the old white supremacist party for the new one.
72: Incumbent advantage; racist dogwhistling; and a robust social welfare agenda (Nixon's domestic economic & regulatory policies are probably not all that people imagine). McGovern runs such a progressive platform, including single payer universal healthcare, that he's sabotaged by his own Democratic party, the inheritors of which have been running scared from his ideas ever since, a mistake
the GOP crucially didn't make with Goldwater. A mass exodus includes key Southern stragglers who now bolster the Southern Strategy by
endorsing Nixon.
08: Two-term effect - and this one left an especially shitty taste in people's mouths.
Dem party had committed to always running Southern conservative candidates (with some
wiggle room), to try to offset Republican gains since the 60s. Obama was a curveball (he wasn't Southern), yet he
was essentially conservative, and he
did essentially talk progressive. And he was charming as fuck. They couldn't handle him, and
lo they did try.
In all cases, a
2-term effect or
incumbent advantage + southern strategy ('72) alone can account for the bulk of the shift. In 2 cases, there's an assassination (3, if you count MLK). Otherwise, the two running threads are economic welfare and racism. Other differentiators include: Vietnam War; civil rights reforms; permanent mass defections (of racists) from one party to the other. Most of that movement has settled, and nothing comparable exists today; the white supremacist banner is now more or less where it's been since '72, while its opponents have to make do with the carcass of what used to be the party of Johnson (for now).
The fracturing of the Dem party also paralleled the weakening of labor unions. Jimmy Carter's presidency did nothing to reverse the trend, and by the time Reagan leaves office, organized labor in this country is a twitching cadaver. So that, too, is no longer a major factor. And the
"new wave" of Democrats have taken all this to mean that the only way they can compete from now on is to peck at Republican leftovers.
Russian propaganda ain't got nothing on 100 years of political memory. Russian propaganda is a wet sneeze in the ocean that is social media distortion, which in turn is a pantomime of ideological contests that are older than any of its participants (and much older than the Russian Federation itself).
(Personalities like Obama and Trump are also x-factors.)
It may well be, as I suspect, that the Southern Strategy will finally die when Latinas and out-of-state migrants make enough babies to turn Texas blue. Hopefully the Asian Tigers + EU have staved off global climate catastrophe until then.