Ammon News - The dollar marked a fresh low against the yen and hovered around multi-year lows versus the euro and the Swiss franc on Tuesday as President Donald Trump's attacks on the Federal Reserve raised concerns about the central bank's independence.

Analysts said the dollar was left in an especially fragile state amid market concerns over the U.S. administration’s tariffs, which could trigger a global trade war.

Doubts about Fed independence threaten the dollar's value as a reserve currency, with some analysts noting possible divestments from what many consider over-exposure to U.S. assets.

The U.S. currency accelerated losses after Thailand's prime minister said trade negotiations with Washington - scheduled to begin on Wednesday - would be postponed.

The dollar was down 0.35% at 140.40 yen , after falling below the psychological 140 level for the first time since mid-September.

The greenback rose 0.18% to 0.8103 Swiss franc , not far from the decade-low 0.8042 reached in the previous session.

The euro fell 0.12% to $1.1498, after jumping to $1.1573 on Monday for the first time since November 2021.

Sterling was 0.12% higher at $1.3390 after surging as high as $1.3421 for the first time since September.

Even the risk-sensitive Australian dollar climbed to a fresh four-month peak of $0.64385.

The U.S. dollar index , which measures the greenback against six other major currencies, was broadly steady at 98.33, after sinking as low as 97.923 in the previous session, a level not seen since March 2022. Reuters