Global financial markets faced heightened volatility on Tuesday as a political assault on the Federal Reserve by former President Donald Trump sent shockwaves through trading floors.
Central Bank Independence Under Fire
The immediate catalyst for the market unease was the opening of a criminal investigation by the US Department of Justice into Fed Chair Jerome Powell. This move, seen as a major escalation in Trump's long-running crusade, directly challenged the cherished political independence of the world's most powerful central bank.
However, the backlash from the global financial establishment was swift and formidable. A coalition of the world's leading central bankers, including Bank of England Governor Andrew Bailey and European Central Bank President Christine Lagarde, issued a robust statement of support for Powell. They underscored that preserving the Fed's independence is critical to maintaining the rule of law and democratic accountability.
Market Reaction and Sentiment Swings
The political tension translated directly into market jitters. London's FTSE 100 index tumbled during the session before managing to claw back losses to end the day broadly flat at 10,137.5 points.
The negative sentiment crossed the Atlantic, with Wall Street also finishing in the red. The S&P 500 closed down 0.2%, while the Dow Jones Industrial Average fell a more pronounced 0.8%. The technology-focused Nasdaq Composite slipped 0.1%.
"Risk sentiment is back on," noted Kathleen Brooks, research director at XTB. She pointed out that the strong defence mounted for Powell had helped to stabilise the situation somewhat. "Even President Trump has figured out that you can only push the Fed so far, and has distanced himself from the subpoenas issued to Jerome Powell by the Department of Justice," Brooks added.
Broader Warnings from Banking Elite
The day's drama was compounded by a sobering warning from one of America's most influential bankers. Jamie Dimon, chief executive of JP Morgan, sounded the alarm that financial markets may be underestimating the current raft of global risks.
He renewed his cautions about the complex geopolitical landscape, persistent inflation, and elevated asset prices, suggesting investors should brace for potential turbulence ahead.
The events of Tuesday served as a stark reminder of how quickly political interventions can unsettle global finance, putting the long-standing principle of central bank autonomy squarely back in the spotlight.



