There are signs that the work of the committee may have moved public opinion in a few ways.

The number of Republicans who think the election was stolen from Donald Trump has fallen below two-thirds. A lot of Republicans still believe in something that isn't true, but their numbers have shrunk.

The average number of Republicans who believed the 2020 election was rigged was over 70% over the course of nine public opinion surveys.

Donald Trump
Donald Trump in Minden, Nev., on Saturday. (Justin Sullivan/Getty Images)

The number of Republicans who believed Trump's "big lie" fell from June 9 to July 21.

Survey data shows that attitudes about Trump's involvement in the insurrection have not changed.

The number of Republicans who are concerned about the future of democracy has decreased. The lower the number of Republicans who think the election was rigged, the more likely that is.

The viability of democracy has become more of a concern for Democrats.

The last year has seen a narrowing of Trump's lead over Ron DeSantis for the Republican nomination for president.

Trump's support has remained in the mid-40s all year, but he has crept up 10 points in the last month.

Florida Gov. Ron DeSantis
Florida Gov. Ron DeSantis. (Olivier Douliery/AFP via Getty Images)

The hearings conducted by the committee may have had an effect. Surveys were conducted during and after the hearings.

A week after the last hearing in July, Donald Trump led Ron DeSantis by a wide margin.

After the FBI searched his Mar-a-Lago home for top- secret documents, Trump's support went up to 50%. According to the most recent poll, Trump's support has gone back down to 42%.

The opinions about Trump have not changed.

42% of U.S. adults believed Trump was to blame for the January 6 attack according to three surveys. The number was found to be the same in a Yahoo News/You Gov survey.

The Economist/YouGov survey found that 42% of US adults believed Trump had a lot to do with the Capitol takeover. A week after the insurrection, that number was the same.

A hearing of the House select committee held on June 16. (Drew Angerer/Getty Images)

Democrats went from 72 percent to 75% and Republicans went from 10% to 14 percent. Some Republicans moved on the question of whether Trump was to blame. The number went from 51 to 42%.

Voters don't seem to think that democracy is in trouble. All voters are concerned. According to some polling, Democratic worries have increased slightly over the last two years, while Republicans have become less anxious.

A CBS News poll found that 16% of 2020 Trump voters thought democracy and the rule of law were secure, and 84% thought democracy was in danger. 32% of 2020 Joe Biden voters thought democracy was secure, and 32% thought it was threatened.

In a June 2022, CBS News survey, Republican alarm went down only a few points, to 81%, and Democratic concern went up a few points, to 73%.

A Yahoo News/YouGov poll found that 85% of Republicans were worried about the future of the U.S.

A protest in support of counting all votes, Nov. 5, 2020, in Philadelphia. (Chris McGrath/Getty Images)

A Yahoo News/YouGov survey in September of 2022, found that Republicans were more concerned about the future of democracy than Democrats. Biden voters' Democratic fears had increased from 81% to 90%, while Trump voter fears had decreased from 89% to 83%.

One of the emphases of the Jan. 6 committee is that the 2020 election was not rigged or stolen and that Trump was aware of this from the beginning. The committee has relied on testimony from Trump's former advisers, as well as other Republicans.

If the Jan. 6 committee reduced the number of GOP voters who were deceived by Trump, they might be less concerned about the reliability of future elections.

The higher levels of Democratic concern about the future of democracy may be due to the fact that there have been many articles in the media about the possibility of Republicans reversing future elections to benefit their own party.

Voters cast their ballots in the Florida primaries, Aug. 23. (Joe Raedle/Getty Images)

According to some polling data, many Democrats are focused on the ability of voters to cast a ballot, rather than the prospect of politicians interfering with the results after they've been cast.

A majority of Democrats think the fall elections will be conducted fairly and accurately, but less than half think all citizens will be able to vote. Less than half of Republicans thought the election would be fair.

The wording of the question doesn't say if voters are worried about a fair election being overturned after the fact.