A former Obama Border Patrol chief has broken his silence to issue a surprising statement about building a border wall.

Mark Morgan was the chief of the U.S. Border Patrol under former President Obama and was asked to step down from his position days after President Donald Trump took office in January 2017. And after his silence since that time, he is finally speaking out in support of Trump’s efforts to get funding for a border wall.

Appearing in an interview with Fox News’ Tucker Carlson on Monday, Morgan declared unequivocally that walls “absolutely work.”

“If you look in the past, you don’t have to go too far back in history, that bipartisan legislation Secure Fence Act in 2006 and 2012, bipartisan legislation passed where they built the wall or fence or physical barrier, whatever you want to call it, it’s a wall. It works,” he said on “Tucker Carlson Tonight” on Monday.

“You worked for Obama, you did not work for Trump, so I don’t know what that says,” Carlson interjected.

“But just to be totally clear we’re having you on to talk about this in your capacity as someone who knows a lot about the subject. Is there a real argument against having a wall that you are aware of?” the Fox News host asked, as Morgan confirmed that he was, in fact, removed from his position by the Trump administration, but is completely in favor of the president’s stand on a border wall.

“The president is right, the president of [National] Border Control Council is right. The other day when they had the national press conference and they got up and they said, ‘The wall works,’ they are right, and it’s not based on a personal, political ideology. That’s based on historical data and facts that can be proven,” Morgan replied, adding that opposition is probably “a political point” that Trumps critics are trying to make.

Morgan, who served in the FBI for two decades, added that he “cannot think of a legitimate argument why anyone would not support the wall as part of the multi-layered border security issue.” He noted that the “gatekeeper strategy” has not changed over the years but that critics are “too wrapped up” in attacking anything that Trump does rather than focus on substance.

“I don’t understand what’s changed,” he said.

When asked by Carlson what he thinks about supporters of the wall being called “bigots,” Morgan replied, “Well, then you call call me that.”

“I believe in what the president is doing. When he says that this is a national security problem, he is absolutely correct,” he concluded.

In a separate interview with the Law & Crime Network on Tuesday, Morgan reiterated his views and explained that he was breaking his silence for “very specific reasons.”

He noted that he chose to remain silent after parting with the White House because “to do so would only serve ceratin political ideaoligies to use my talking points then to further serve their own agenda.”

But after some time, he added, he saw the “amount of rhetoric” and the “outright lies” about border security and decided he had to speak up.

“I’m here today breaking my silence to tell the American people that the president is correct in what he’s doing,” he said. “The wall works.”