Subject: What about that Iowa poll?
...the one that showed Harris winning there? Trump ended up taking Iowa by...13 points.

https://www.desmoinesregister....

Here's Selzer explaining it all:

In response to a critique that I “manipulated” the data, or had been paid (by some anonymous source, presumably on the Democratic side), or that I was exercising psyops or some sort of voter suppression: I told more than one news outlet that the findings from this last poll could actually energize and activate Republican voters who thought they would likely coast to victory. Maybe that’s what happened.

Yeah...probably not.