How do we measure the effect of the Jan 6 committee hearings ?

So I was driving home and listening to CNN. Jake tapper was interviewing somebody about a new poll gauging whether or not people think Trump broke the law to attempt ro steal the 2020 elections.
They were saying that the number of people who think Trump did has not changed at all , still at the same 46 % from a few months ago.

Yet they were saying a majority of people were paying close attention to those hearings ( 51 % of Republicans for example).

That is quite disappointing if true. What the hell does it take to wake up apathetic voters ???

Alternatively, the way poll questions are crafted may affect the outcome significantly. I just can't believe how dumb people are if at this stage they still think Trump did nothing wrong.