As I post this the Trump-Biden debate has just ended. Timing was rather unusual for this encounter. Normally presidential debates are held in August or September, just weeks before Election Day.

Voters, buckle your seat belts. We just got started.

Karl Rove recently was published in the Wall Street Journal, PRIOR to the debate:

No Summer Vacation From Election 2024

A presidential campaign never stops, but there are lulls. We’re entering one: the period between the Donald Trump and Hunter Biden verdicts and the first debate; from then on it’s going to be a breakneck pace.

Gallup’s May 23 survey—its last poll on how the candidates are viewed before Mr. Trump’s conviction—found that 46% of Americans view each candidate favorably. Mr. Trump led Mr. Biden 25% to 20% in highly favorable views, but also in highly unfavorable, 40% to Mr. Biden’s 35%. This likely reflects what we already know: Mr. Trump’s base is more enthusiastic about him than Democrats are about Mr. Biden, whose supporters are motivated more by their dislike of the GOP candidate. If this persists, the election will become a contest between voters’ lack of passion for Mr. Biden and their hostility toward Mr. Trump. In a race this tight, how each candidate comports himself in critical moments could tip it one way or the other.

There are at least six such inflection points to watch in the next three months. We’ve already reached the first—how each campaign handles the guilty verdicts. Team Trump says Hunter’s trial was “a distraction from the real crimes” of the Biden family, allegedly enriching itself through Hunter’s foreign dealings. Team Biden projects the image of a caring father supporting his wayward son while castigating Mr. Trump for his conviction for falsifying business records over hush money to a porn star. Both camps must be careful about their rhetoric. Being over the top could turn away swing voters.

The second important moment comes later this month. Mr. Trump could use the June 27 debate to put Mr. Biden in a deep hole by pressing the case on inflation, uncontrolled immigration, global instability and cultural concerns. Just as important are Mr. Trump’s temperament and deportment, and they’re problems. Mr. Biden could steal the night if he goads Mr. Trump into repeating his 2020 first debate performance, when the latter’s shouting, interrupting and incoherence came off as unhinged. Shortsightedly, Team Trump has been lowering expectations for Mr. Biden’s performance, jeering that he’ll be senile on stage. If a lucid Mr. Biden shows up—a real possibility—that could be a blow to Mr. Trump.

Key point No. 3 will be Mr. Trump’s July 11 sentencing. If he’s sent to prison, some of his supporters could be violent. But many legal observers believe prison time is a remote possibility, and because of appeals Mr. Trump likely wouldn’t be incarcerated before the election anyway. The more enraged Mr. Trump is in public about his sentence, the more undecided voters may conclude he got what was coming to him. On the other hand, showing a steely confidence about winning on appeal could convince undecided voters to give Mr. Trump the benefit of doubt. For Team Biden’s part, the more the campaign trash-talks the Republican, the more the verdict will look like politicized lawfare, a sure turnoff to swing voters.

The GOP convention, which starts July 15, is key moment No. 4. By then, Mr. Trump will have settled on a running mate. A strong choice will reassure voters about Mr. Trump’s judgment. This is also Mr. Trump’s last, best chance to unify the party. The GOP is more fractured than it should be at this point in the campaign.

Inflection point No. 5 comes a month later, on Aug. 19, when the Democratic convention in Chicago begins. There’s widespread concern about Mr. Biden’s mental acuity, given his age and behavior. Many Democrats will be holding their breath during his acceptance speech. There’s also the danger of violence by pro-Hamas demonstrators. At least when protesters disrupted the 1968 Democratic convention, the Chicago mayor backed the police. This time, the mayor is with the demonstrators, refusing to rule out encampments in nearby parks. Hamas advocates used similar camps with great effect in shutting down universities.

After that come two weeks around Labor Day, which are particularly critical given that both candidates are running for their second terms. It’s just about the last opportunity an incumbent has to establish what he did in office, preview his next act, and contrast himself with his opponent. In this race, that means nonstop campaigning for Messrs. Trump and Biden in the half-dozen battleground states before the second debate on Sept. 10. Early voting begins soon after.

In the midst of all this, there could be an international incident or a measurable change in the economy. Either could deeply affect the election’s direction. After (the debate), our collective hiatus will be over and it’s pedal to the metal.

—Karl Rove helped organize the political-action committee American Crossroads and is author of “The Triumph of William McKinley”