The cities’ mayors — one Democrat, one Republican — have both said that they will welcome Mr. Trump, but the mood is particularly fraught in El Paso, which has long been a focus of the president’s efforts to restrict immigration.

Go deeper: The four-page manifesto that the authorities say was written by the suspect in the El Paso shooting cited the “great replacement” theory, the fear that white people will be replaced by people of color. We examined the history of the racist doctrine.

From The Times: Many readers criticized a headline in the first edition of Tuesday’s newspaper, about Mr. Trump’s statement addressing the shootings, for lacking context. Our deputy managing editor Matt Purdy addressed the criticism, acknowledging that the headline “was not a good one.”

Gun control bills gain ground with Republicans

After the mass shooting in his state, Gov. Mike DeWine of Ohio on Tuesday proposed adopting a “red flag” law, which would allow the authorities to take firearms from anyone deemed dangerous by a court.