Former President Donald Trump did not hold back when discussing his successor’s horrific border and immigration policies during a stump speech in Iowa on Wednesday.

No sooner than President Joe Biden sat down behind the Resolute Desk in the Oval Office, he signed several executive orders that reversed most of Trump’s tough immigration enforcement and border security policies. The reversals, critics contend, have led to near-historic levels of illegal border crossings, and Trump predicts that as many as 15 million will have entered the U.S. illegally during Biden’s term.

If he wins the election next year, Trump vowed to reinstate a past U.S. policy implemented by a previous president.

“I will immediately terminate every open borders policy of the Biden administration and follow the Dwight D. Eisenhower model,” Trump said on the stump in Dubuque, Iowa. “So Eisenhower was very tough on the border. People don’t see him as that, but he was.

“We’ll carry out the largest domestic deportation operation in American history,” he added.

Earlier in the day, Trump spoke at another rally, lashing out at the “lunatic regime of fascists, communists, and everything else” that destroyed the “most secure border in history.”

“I think it’s a terrible, terrible thing, but when we get in, we’ll be able to stop it,” Trump said.

In Dubuque, meanwhile, Trump vowed to end the “scourge of illegal alien gang violence once and for all.”

“I will also invoke immediately the Alien Enemies Act to remove all known or suspected gang members,” Trump said. “We have tremendous numbers of gang members – MS-13, the worst gangs in the world, they say – the drug dealers, the cartel members,” he said.

“We took them out by the thousands, thousands and thousands of people we took out,” the former president added.

He went on to say that his deportation force will include federal law enforcement agencies such as the Drug Enforcement Agency (DEA), Alcohol, Tobacco, and Firearms (ATF), Federal Bureau of Investigation (FBI), and the Department of Homeland Security (DHS).

“I will shift massive portions of federal law enforcement to immigration enforcement, including parts of the DEA, ATF, FBI, and DHS, all of them,” Trump vowed. “I’ll make clear that we must use any and all resources needed to stop the invasion, including moving thousands of troops currently stationed overseas, guarding other people’s borders. We guard other people’s borders, but we don’t guard our own.”