US President Donald Trump speaks to the press as he departs the White House in Washington, DC, on January 6, 2019, for meetings at Camp David. - President Donald Trump stood firm Sunday on his demand for billions of dollars to fund a border wall with Mexico, which has forced a shutdown of the US government now entering its third week."We have to build the wall," Trump told reporters as he left the  White House for the Camp David presidential retreat, while  conceding that the barrier could be "steel instead of concrete." (Photo by Jim WATSON / AFP)        (Photo credit should read JIM WATSON/AFP/Getty Images)
JIM WATSON/AFP/Getty Images
US President Donald Trump speaks to the press as he departs the White House in Washington, DC, on January 6, 2019, for meetings at Camp David. - President Donald Trump stood firm Sunday on his demand for billions of dollars to fund a border wall with Mexico, which has forced a shutdown of the US government now entering its third week."We have to build the wall," Trump told reporters as he left the White House for the Camp David presidential retreat, while conceding that the barrier could be "steel instead of concrete." (Photo by Jim WATSON / AFP) (Photo credit should read JIM WATSON/AFP/Getty Images)
Now playing
04:15
Former presidents deny praising Trump's wall
Clouds are seen above The U.S. Supreme Court building on May 17, 2021 in Washington, DC. The Supreme Court said that it will hear a Mississippi abortion case that challenges Roe v. Wade. They will hear the case in October, with a decision likely to come in June of 2022.
Drew Angerer/Getty Images
Clouds are seen above The U.S. Supreme Court building on May 17, 2021 in Washington, DC. The Supreme Court said that it will hear a Mississippi abortion case that challenges Roe v. Wade. They will hear the case in October, with a decision likely to come in June of 2022.
Now playing
02:14
Ruling shows Supreme Court still has political divisions
jeffrey toobin scotus cheerleader free speech case reax nr vpx_00000000.png
jeffrey toobin scotus cheerleader free speech case reax nr vpx_00000000.png
Now playing
01:56
Toobin: SCOTUS realizes this is just how high schoolers talk
Now playing
03:03
CNN reporter: Jared and Ivanka have made a calculated decision
Senate Minority Leader Mitch McConnell (R-KY) speaks about his opposition to S. 1, the "For The People Act" on June 17, 2021 in Washington, DC.
Joshua Roberts/Getty Images
Senate Minority Leader Mitch McConnell (R-KY) speaks about his opposition to S. 1, the "For The People Act" on June 17, 2021 in Washington, DC.
Now playing
03:59
Avlon: This would make Mitch McConnell howl
CNN's Kyung Lah speaks to a ballot paper maker in Arizona
CNN
CNN's Kyung Lah speaks to a ballot paper maker in Arizona
Now playing
03:37
Ballot maker responds to wild conspiracy theory
CNN
Now playing
02:42
'This is insane': GOP Arizona county official slams election 'audit'
FLINT, MI - OCTOBER 31: Former U.S. President Barack Obama speaks during a drive-in campaign rally for Democratic presidential nominee Joe Biden at Northwestern High School on October 31, 2020 in Flint, Michigan. Biden is campaigning with former President Obama on Saturday in Michigan, a battleground state that President Donald Trump narrowly won in 2016. (Photo by Drew Angerer/Getty Images)
Drew Angerer/Getty Images North America/Getty Images
FLINT, MI - OCTOBER 31: Former U.S. President Barack Obama speaks during a drive-in campaign rally for Democratic presidential nominee Joe Biden at Northwestern High School on October 31, 2020 in Flint, Michigan. Biden is campaigning with former President Obama on Saturday in Michigan, a battleground state that President Donald Trump narrowly won in 2016. (Photo by Drew Angerer/Getty Images)
Now playing
00:54
Obama slams GOP's opposition to voting reform
CNN
Now playing
02:39
NY candidate says he's joining forces with his opponent. Here's why
Now playing
03:36
They stood up to Trump's lies and now are losing their jobs
Now playing
02:34
Schumer on infrastructure talks: We need big, bold change
CNN
Now playing
03:14
This family's lives will be changed by the child tax credit
CNN
Now playing
02:46
Toobin on Supreme Court ruling: I was struck by Kavanaugh's opinion
Getty Images
Now playing
02:47
Enten: Straw poll of GOP activists rates DeSantis over Trump
jake sullivan russia sanctions bash sotu vpx_00000000.png
jake sullivan russia sanctions bash sotu vpx_00000000.png
Now playing
01:48
Sullivan: US preparing more Russia sanctions over Navalny poisoning
CNN —  

President Donald Trump said Friday that a former president had commended him for his commitment to securing funds to build a wall along the nation’s southern border.

However, none of the four living former presidents have said they told Trump they wished they had built the wall.

In a news conference Friday, Trump suggested that at least one prior commander in chief had agreed with his desire to build a wall.

“This should have been done by all of the presidents that preceded me,” Trump said. “And they all know it. Some of them have told me that we should have done it.”

But his predecessors have denied such a conversation.

Jimmy Carter, the oldest living former president, said Monday that it wasn’t him.

“I have not discussed the border wall with President Trump, and do not support him on the issue,” Carter said in a statement tweeted by The Carter Center on Monday afternoon.

Freddy Ford, a spokesman for former President George W. Bush, told CNN that “they haven’t discussed this.”

Former President Bill Clinton spokesman Angel Urena said Clinton “never said that,” adding that “they’ve not talked since inauguration.”

A spokesman for Trump’s immediate predecessor, Barack Obama, did not respond directly to a CNN request for comment, instead passing along comments Obama made as president in which he said a wall isn’t necessary.

“A nation ringed by walls would only imprison itself,” Obama told the assembled representatives of the UN’s member states in September 2016.

In a commencement address at Rutgers University in May 2016, Obama blasted the idea and said a wall was antithetical to America’s history of attracting and growing from “strivers.”

“Suggesting that we can build an endless wall along our borders, and blame our challenges on immigrants – that doesn’t just run counter to our history as the world’s melting pot; it contradicts the evidence that our growth and our innovation and our dynamism has always been spurred by our ability to attract strivers from every corner of the globe,” he said to a cheering crowd.

Obama’s representatives didn’t respond to CNN last week when asked if he was the former president who had spoken with Trump and praised the wall. CNN reached out to Obama’s representatives again Monday.

CNN’s Marylynn Ryan contributed to this report.