It's also instructive to look at American attitudes toward the Iraq war. I'm pretty sure that many people who now say it was a terrible idea and that they voted for Trump because they don't want to be in any more wars were absolutely rock-ribbed supporters of it at the time. Asking if they think Obama did a good job in extricating the US from that conflict serves as a useful litmus test.

> It'll take probably 5-10 years before the 10-20% own up to "being had".

Approval numbers are already declining rapidly on key issues. The main effects of tariffs haven’t even hit them yet.

Sure thing - might happen quicker. Hopefully.

But honestly, there's one thing being "disapproving" and a whole different thing getting people to admit they were wrong.

And either way - given it doesn't matter who disapproving any of us are - the 5-10 year time frame is realistic as given your political terms.