It has been one of the most fractious relationships between an American president and a central banker in history.
Since returning to the White House, Donald Trump has repeatedly attacked Federal Reserve chair Jerome Powell - mainly because interest rates have not fallen as quickly as the 47th president of the US would like.
Now, as Powell prepares to step down as chair to make way for Trump's nomination Kevin Warsh, we take a look back at some of the biggest clashes between the two.
Trump expressed shock that Jerome Powell got the job of Federal Reserve chair in the first place.
"He's a terrible Fed chair," he said last July. "I was surprised he was appointed. I was surprised, frankly, that Biden put him in and extended him."
