Darrell C. Scott, a Cleveland pastor who supports Mr. Trump, said the candidate’s statements on Friday followed several days of deliberation. Mr. Scott, a leader of the National Diversity Coalition for Trump, said Mr. Trump’s attorney, Michael D. Cohen, had reached out days earlier to ask that the group weigh in on the police shooting in Baton Rouge, the first of the three episodes.

As the week’s violence intensified, Mr. Scott said, the pro-Trump coalition and the campaign reacted to the killings in an overall statement on Friday. The pastor said he was untroubled by Mr. Trump’s imprecise description of one of the two black men killed by the police.

If Friday’s approach shielded Mr. Trump from another Orlando-style mistake, he might still have paid a price for his tendency for fulmination and fury. While he was restrained from delivering another diatribe, Mrs. Clinton canceled only part of her schedule and went forward with an address on Friday to the African Methodist Episcopal convention in Philadelphia.

There, Mrs. Clinton delivered an argument about repairing relations between the police and black communities and confronting “systemic racism” in American institutions.

Mr. Trump, trailing in the polls and facing doubts about his temperament, has not displayed similar confidence after any of the tragedies that have rocked the campaign season. His advisers have tried to seize opportunities for him to project a sense of calm leadership. So far, this has been unsuccessful.

A discussion about visiting Orlando after the nightclub attack quickly fizzled. The proposal to visit with New York police officers never came close. Mr. Bratton spoke briefly by phone with Mr. Trump and Mrs. Clinton, but a spokesman for the commissioner said Mr. Trump did not revisit the idea of meeting with the police.