I don’t see much change at all comparing pre-1-6 primetime hearings to post primetime hearings. At least that can’t be attributed to the MOE or the normal ups and downs of polling. The primetime hearings so far have had no effect. Perhaps I missed something.

8 June 2022 Generic congressional ballot, RCP averages 46.5-42.5, Republican, 538 averages 45.2-42.8 Republican

16 June 2022 Generic congressional ballot, RCP averages 46.3-42.8, Republican, 538 averages 44.9-42.3 Republican

18 June 2022 Generic congressional ballot, RCP averages 44.5-42.0, Republican, 538 averages 44.7-42.4 Republican

RCP, GOP a 3.0 lead on 8 June, today a 2.5 lead, -0.5 of a point. 538 GOP a 2.4-point lead, today a 2.3-point lead, -0.1, a tenth of a point. Not much change since the primetime hearings.

https://www.realclearpolitics.com/epolls/other/2022-generic-congressional-vote-7361.html

https://projects.fivethirtyeight.com/polls/generic-ballot/

The President’s overall job performance numbers.

8 June 2022 Biden’s overall job performance, 40.7% approve, 54.0% disapprove

16 June 2022 Biden’s overall job performance, 38.9% approve, 54.4% disapprove

18 June 2022 Biden’s overall job performance, 39.8% approve, 54.7% disapprove

Biden’s approval dropped -0.9 or 9 tenths of a point; his disapproval rose +0.7 of a point since primetime.

https://www.realclearpolitics.com/epolls/other/president-biden-job-approval-7320.html

Perhaps the best way to look at this is the number of competitive, switchable, at risk house seats beginning 8 June 2022.
8 June – House 39 Democratic seats, 13 Republican seats fell into the at-risk category. A probable gain of 18-20 seats for the Republicans. Senate – 5 pure tossups, 3 democratic held seats, Georgia, Nevada, Arizona, 2 Republican held seats, Pennsylvania, Wisconsin. 1 lean Democratic seat, Democratic held New Hampshire, 1 lean Republican seat, Republican held North Carolina.

16 June – House 40 Democratic seats, 13 Republican seats fell into the at-risk category. A probable gain of 18-20 seats for the Republicans. Senate – 5 pure tossups, 3 democratic held seats, Georgia, Nevada, Arizona, 2 Republican held seats, Pennsylvania, Wisconsin. 1 lean Democratic seat, Democratic held New Hampshire, 1 lean Republican seat, Republican held North Carolina.

16 June – House 40 Democratic seats, 13 Republican seats fell into the at-risk category. A probable gain of 18-20 seats for the Republicans. Senate – 5 pure tossups, 3 democratic held seats, Georgia, Nevada, Arizona, 2 Republican held seats, Pennsylvania, Wisconsin. 1 lean Democratic seat, Democratic held New Hampshire, 1 lean Republican seat, Republican held North Carolina.

House seats +1 for the Democrats in the at risk, switchable, competitive seat, Republicans remain the same. The senate remains the same as it was back on 8 June prior to the primetime hearings.

It's high past time that we start electing Americans to congress and the presidency who put America first instead of their political party. For way too long we have been electing Republicans and Democrats who happen to be Americans instead of Americans who happen to be Republicans and Democrats.