While the official who spoke to Axios contended that Mulvaney had a positive rapport with the president, a 2015 radio interview resurfaced by CNN's KFile showed that Mulvaney once called Trump's position on the wall "absurd and nearly childish".
"You fucked it all up, Mick", Trump reportedly told Mulvaney, cutting him off while he spoke of finding a "middle ground" with Democrats who seemed to be unflinching in their opposition to providing $5.7 billion for Trump's border wall.
The meeting, which took place on January 4 in the White House Situation Room, consisted of Trump restating his demand for $5.7 in funding to build a wall along the U.S. -Mexico border.
A Trump administration official told Axios the report was "an exaggerated account of the exchange that doesn't reflect the good relationship Mulvaney has built over the last two years with the president".
Lab strips DNA pioneer James Watson of honours for racist views
In the PBS documentary, the host asked Watson if he had changed his views on race in the decade since his departure from the lab. Dr Watson sold his gold medal in 2014, saying he had been ostracised by the scientific community after his remarks about race.
Mulvaney inserted himself into the conversation and tried to negotiate a compromise sum of money, according to the sources in the room.
"It was so awkward, I was looking down, like I couldn't watch", said the source.
At that point, the President abruptly cut off his aide, saying, 'You just f***ed it all up, Mick, ' according to a source.
"As a negotiator, Trump was resetting", the person said. "Mick was not reading the room or the president".