yeah that too (James Blaine against Grover Cleveland, 1884)
That was the “rum, romanism, and rebellion” election too - which like Romney’s “47 percent” came out in a privateish setting (tho from a surrogate) and was picked up by an opposition tracker who used it to hype his base
I don’t think it’s appreciated enough that the “acid, amnesty, and abortion” line against George McGovern in ‘72 was an echo of this, only with the Catholic valence reversed
and… HOLY SHIT, apparently that line came anonymously from Thomas fucking Eagleton, McGovern’s later fucking ticketmate, the one who dropped out after it came out he’d been electroshocked for being crazy, holy shit.