Donald Trump promoted his immigration plan during a campaign speech Monday, hours after the suspect in the New Jersey and New York bombings was arrested in a gun battle with police.

"Attack after attack from 9/11 to San Bernardino, we have seen how failures to screen who is entering the United States puts all of our citizens, everyone in this room, at danger," Trump said. "So let me state very, very clearly: immigration security is national security."

Trump's speech took place in Estero, Fla. at a campaign rally. He took shots at Hillary Clinton and President Barack Obama and the immigration policies they have put in place and supported, and he highlighted the radical Islamic terror attacks that have plagued the world in recent years.

"All together there are nearly 1 million individuals in the United States with deportation orders who have not yet been removed," Trump said. "In the 20th century, the United States defeated fascism, Nazism, and communism. Now we must defeat radical Islamic terrorism."

Trump said there has been a radical Islamic terror attack this summer every 84 hours across the globe, not including "the war Zones of the Middle East."

He noted, "Hillary Clinton is a weak and ineffective person, and I will tell you, if you choose Donald Trump, these problems are going to go away far, far greater than anybody would think. Believe me."

Trump began his speech by thanking the members of the law enforcement community in the wake of the weekend's bombings allegedly at the hands of Ahmad Khan Rahami.

Police in Linden, N.J. identified Rahami outside of a bar Monday morning. A gun battle ensued, and Rahami was wounded, arrested, and taken to a hospital.

Two police officers were also shot but their wounds are not life-threatening.

Trump then gave specifics of what Clinton plans to do if she wins the presidential election in November.

"My opponent has the most open borders policy of anyone ever to seek the presidency," Trump said.

"Now she wants a 550 percent increase in Syrian refugees above the high numbers we already have. All together, her plan would bring in 620,000 refugees in her first term with no effective way to screen them or vet them. Law enforcement said there's no way.

"Her plan would cost $400 billion in terms of lifetime welfare, benefits, and entitlement costs."

After recalling the death and injury tolls of several terrorist attacks that have occurred in the past few years, Trump reiterated his pledge to keep America safe.

"We cannot let this evil continue. Cannot do it," said Trump, who appeared to be speaking with a teleprompter.

"We have a lot of great people on Earth, folks. I have to tell you that. We have a lot of great people. We have to fight the bad ones. We have to do it together. Anyone that cannot condemn the hatred, oppression and violence of radical Islam lacks the moral clarity to serve as our president."

Trump said improving screening procedures has to be at or near the top of the list when it comes to solving immigration and national security problems in America.

"A majority of [people] Afghanistan and Iraq . . . say honor killings of women are often justified," Trump said. "We have admitted around 100,000 from these countries over the last short period of time. And this thug today they think came through Afghanistan.

"What kind of screening procedures were performed? These were difficult subjects, but they must be discussed by all responsible leaders. We have an obligation to discuss them and to come up with the right solution. This is the kind of thing we need to have an honest conversation about when devising screening methods. They have to be good screening methods. They have to be methods that work.

"Unless we have those methods, sorry, folks, you can't come into the country."

Trump pointed to Obama's decision to withdraw from Iraq as one factor that has led to the rise of the Islamic State (ISIS) in the Middle East.

Earlier Monday, Trump reacted to the arrest of Rahami in a Twitter post:

Once again someone we were told is ok turns out to be a terrorist who wants to destroy our country & its people- how did he get thru system? — Donald J. Trump (@realDonaldTrump) September 19, 2016

A childhood friend of Rahami's, meanwhile, told Fox News the terror suspect acted and dressed differently when he returned to the U.S. from a trip to Afghanistan a few years ago.

"He was more quiet and didn't talk as much," Flee Jones told the network.

"He was more into dressing for his religion, and from back then he dressed like a normal person, like regular."