After thanking law enforcement officials for Rahami’s quick apprehension, Trump bemoaned the excellent care he expects the accused culprit to receive while in custody.
"Now we will give him amazing hospitalization. He will be taken care of by some of the best doctors in the world," said Trump. "He will be given a fully modern and updated hospital room. And he'll probably even have room service, knowing the way our country is. And on top of all of that, he will be represented by an outstanding lawyer."
Rahami, a naturalized U.S. citizen, was arrested this morning after a shootout with police in Linden, New Jersey, and is undergoing surgery for the wounds he sustained in a hospital in Newark.
Trump urged law enforcement to to extract additional information from the suspect. "We must also use whatever lawful methods are available to obtain information from the apprehended suspect to get information before it's no longer timely," he said.
Trump went on to predict that Rahami’s case would go through the U.S. judiciary system "for years" and that ultimately "his punishment will not be what it once would have been."
"We must have speedy, but fair trials and we must deliver a just and very harsh punishment to these people," Trump said.
The businessman was steadfast in his approach to immigration as he tied the issue to this weekend's incidents. He repeatedly warned of the dangers of radical Islam, questioning the U.S.'s vetting processes for those who wish to come to the country.
"We have opened the world to ISIS and now we have to close those doors,” he said. He reiterated his call to "temporarily suspend immigration entirely from regions where safe and adequate screening cannot occur” and lambasted Clinton and the current administration’s plans to allow refugees into the United States.
During an appearance on "The O'Reilly Factor" tonight, Trump said "we have no choice" but to use racial profiling to combat terrorism. "It’s not that you want to do it. ... I don’t like to do it, but we have to be -- you have a woman who is 87 years old in a wheelchair who is from Sweden and we have to look at her if we’re going to look at somebody else. It’s ridiculous what is going on. We want to be so politically correct."
He added later: "We have a country to keep safe and we’re not going to keep our country safe. We see this happening and you know and I know it’s going to get worse. Unless I’m president.”
At the rally, the businessman called for tight screening and tough controls, saying it actually benefits other immigrants "when we keep out those who do not truly wish to join our society."
The Republican nominee also blamed his Democratic rival for the spread of terrorist attacks in the U.S.
"She very much caused the problem when you think about it," he said. "Her weakness, her ineffectiveness, caused the problem and now she wants to be president. I don't think so."
ABC’s Josh Margolin, Mike Levine and Aaron Katersky contributed to this report.