the prosecutor went into a line of questioning that had already been ruled as inadmissible in court before the trial started. the prosecutor was aware of this and did it anyway, hence, the scolding.

the prosecutor also made a 5th amendment violation by questioning rittenhouse's right to silence.

these are 2 major indiscretions, and points to the fact that the prosecutor is actively trying to get a mistrial, which would mean there would be a retrial where they could try again, however, the judge is considering mistrial due to prejudice, where there would be no retrial.

the prosecutor knows the case is lost and is doing shady shit to try to salvage.