The hearings must also inspire action. In this setting, that would normally mean triggering legislative reforms. After Watergate, Congress passed new laws as safeguards against systemic abuse. But with today’s politics, new bills are unlikely to see broad support. The committee must navigate around that logjam — and explain that the Big Lie is still going strong and motivate Americans to defeat it at the ballot box.

Just last week, in Pennsylvania, Dr. Mehmet Oz, a Trump-endorsed election skeptic, became the Republican Senate nominee. If he becomes the deciding vote in a closely divided Senate, that will not bode well for reform legislation to prevent election sabotage — and for honest certification of future presidential electors.

In Pennsylvania, Dr. Oz will actually be the less intense “Stop the Steal” Republican candidate. Doug Mastriano, who was a leader in efforts to overturn the 2020 election in the state (and was subpoenaed by the committee), won the Republican primary for governor. Across the country, Mr. Trump has endorsed over 180 Republican candidates, most of whom have supported his false stolen-election claims. This year, they have, in effect, set up a counternarrative to the committee’s work.