President Donald Trump’s criticism of the Federal Reserve not only makes the U.S. central bank’s job more complicated but turns up the heat on Treasury Secretary Steven Mnuchin, analysts said.

Mnuchin is widely seen as the administration official who ushered the Powell team into the Fed and argued it would be a group that the president would like. Now the president doesn’t like the Fed board that has been put together.

Trump in Twitter this week made several last-ditch efforts to sway the Fed, saying it was “incredible” to think about raising this week.

Read: Trump urged Fed to ‘take the victory’ and not hike interest rates

“Given the president’s state of mind, the revolving door of this administration has to engender discomfort for people, who are paying attention, who are still part of the administration,” said Kim Wallace, U.S. managing director at Eurasia Group, who served in the Obama Treasury.

See:Here’s how the Fed may ‘feel the market’

White House trade adviser Peter Navarro, widely seen as Mnuchin’s rival on trade issues in the administration, went on television Monday to echo his boss’s criticism of the Fed.

Ian Katz, a partner at Capital Alpha Partners in Washington, agreed the current situation turned up the spotlight on the Treasury secretary.

“Mnuchin is the closest thing the administration has to a proxy for Powell, the stock market, and the economy,” Katz added. If Trump needs a scapegoat, Mnuchin would be the easiest target.

Speculation about the president’s dissatisfaction with Mnuchin surfaced in a Wall Street Journal story in November, that said Trump blamed the Treasury secretary for Powell’s appointment and for recent stock market losses.

Read: Trump faults Treasury secretary over Fed pick

After the Wall Street Journal story ran, Trump tweeted he was “extremely happy and proud” of Mnuchin’s performance and said the story was based on “phony sources.”

Mnuchin went on CNBC to dismiss the WSJ report. He said Trump was “pleased” with a Powell speech in which the chairman characterized interest rates as “just below” neutral, although Mnuchin didn’t specify exactly what the president liked. Markets had viewed the Fed chairman’s remarks as dovish, suggesting a slower pace of interest rate hikes.

Read:Fed still likely to raise interest rates in December, economists say — even as stock market gyrates

A source familiar with the administration’s views disputed that the Trump tweet this morning had anything to do with his support for Mnuchin.

The source said the president made his views on higher interest rates clear and earlier has made clear his support for the Treasury secretary and the job he’s doing.

The Fed is expected to raise its benchmark federal funds rate on Wednesday to a range between 2.25% and 2.5%. Officials might signal a slower pace for rate hikes in 2019.

See:The Fed is about to embark on a tricky balancing act, with a rate hike and a dovish message