A private group that raised millions of dollars in donations through GoFundMe completed the construction of a one mile border wall.

On Monday, Brian Kolfage, a triple amputee Air Force veteran and founder of We Build the Wall Inc. announced that the group “built a mile-long wall on a private property along the U.S.-Mexico border in just three days.”

He told Daily Mail that his organization plans to sell the border wall to the federal government for $1. He said their construction cost is between $6 million to $8 million.

“We’re going to sell this wall back to them [referring to the federal government] for $1 and release the title to them. We can’t give the government the money because that’s not the way it works. But we wanted to show the American people how to get his job done,” said Kolfage.

Tommy Fisher, the president and CEO of Fisher Industries, supervised the construction of the border wall, which starts at the Rio Grande River up to Mount Cristo Rey. The U.S. Army Corps of engineers said it’s impossible to build on that area.

We Build the Wall raised more than $22 million in funding from Americans who gave donations ranging from $5 to $6 million (offline donation).

Kolfage started the fundraising campaign for a privately-funded border wall in December. He made the decision amid the stalemate between President Donald Trump and Democrats in the Congress regarding funding for a physical barrier.

Closing an important gap to stop drug and human trafficking

Former White House Chief Strategist Steve Bannon serves as chairman of the advisory board of We Build the Wall while former Kansas Secretary of State Kris Kobach serves as its general legal counsel.

During an interview with CNN on Monday, Bannon said the border wall built by the group connects two 21-mile sections of existing barriers. He said, "Border Patrol told us it's the No. 1 most important miles to close. The tough terrain always left it off the government list. And that's what we focus on -- private land that is not in the program and take the toughest first."

On the other hand, Kobach described the area as a “gap that needed to be filled” to stop drug and human trafficking. According to him, “The whole idea is we want to supplement what the federal government is doing. We can complement it by closing the gap and making that wall in El Paso much more effective.”