Donald J. Trump addressed the massacre in Orlando, Fla., on Monday, one day after the deadliest mass shooting in American history, as part of a broader national security speech in Manchester, N.H., where he also contrasted himself with Hillary Clinton.

Here are the highlights from Mr. Trump’s speech:

• Mr. Trump began his remarks saying he initially planned to focus on Hillary Clinton, “and all of the bad things and we all know what’s going on,” adding “especially how poor she’d do as president in these very, very troubled times of radical Islamic terrorism.” He promised that speech would come “very, very soon.”

• Mr. Trump called for a moment of silence for the dead in Orlando, saying it was an attack against people and “an attack on the right of every single American to live in peace and safety.” He continued, “We need to respond to this attack in America as one united people.”

• As his first policy proposal if elected president, Mr. Trump reiterated his plan to temporarily ban Muslim immigration. He said in particular that he would ban immigration from countries where terrorism was a threat. He said, referring to the assailant in Orlando, that “thousands and thousands of people, many of whom have the same thought process as this savage killer” are pouring into the country, and that the ban “will be lifted when and as a nation we are in a position to properly and perfectly screen these people coming into our country.”