Pew's reference point was 1978 to 2018

Submitted by Ian (Australia), Feb 1, 2018 at 13:52

To be fair the earlier article made the same point but referenced a over a longer period
https://www.timesofisrael.com/poll-democratic-support-for-israel-palestinians-nearly-identical/
The survey said the partisan divide in support for Israel was "wider than at any point since 1978," when 49% of Republicans and 44% of Democrats sympathized with Israel over the Palestinians.

Although the percentage gap in support for Israel remained fairly steady between the parties in the two decades after 1978, the parties' views on Israel began to diverge in 2001, since when support among Democrats has fallen from 38% to 27% today, while among Republicans it has risen from 50% to 79%.

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