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Rasmussen Reports says this last sample included 50% of the sample after the Kamala interview.
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I saw that only 6 million watched the interview directly on CNN (untold on other outlets showing clips) so it is hard to believe the dip for Kamala was really associated with the interview.  Might just be statistical noise.

Polymarket did not swing at all for Harris after the interview so far.  Further evidence supporting the notion that it "didn't move the ball forward."

Doesn't look like the Kamala interview tipped the prediction market in her favor.  She's down 4 points.
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Polymarket is a betting market.  So it is the result of the estimations of the players, rather than a voter poll, etc.

Not every Rasmussen nightly poll favors Trump