The US dollar has acted as the foundation of the international economic system for nearly eight decades now. The dominance of the dollar is tied to the size of the US economy and the strong institution of the Federal Reserve. The Fed has a reputation for disciplined and predictable monetary policy. This gives the dollar stability that other currencies struggle to match.
The Dollar as a Safe Haven Currency
A large percentage of international transactions is invoiced and settled in USD, making the currency deeply embedded in world trade. Traditional explanations of dollar dominance emphasize three pillars.
- The size of the US economy which remains the largest in the world.
- The depth and liquidity of US financial markets which make dollar assets convenient and safe to trade.
- The credibility and independence of the Federal Reserve
The first two pillars are observable and well documented. But the third is something investors believe in but cannot see directly. It has been built over decades through consistent decisions, clear communication and a track record of putting economic data above political pressure. Without the third pillar, the first two would not be enough to keep the dollar at the center of global finance.
These factors make the USD a safe-haven asset and encourage investors to move their cash during volatile markets. A good example is how the dollar strengthened against most major currencies despite the broader market sell off as the Iran conflict escalated in late February and Brent crude prices spiked above $100 a barrel. During this period, forex trading platforms recorded a high volume of transactions into dollar-denominated assets, as the USD serves as a hedge against geopolitical risk and energy market volatility. The same pattern was visible in the early days of the Russia-Ukraine war and the COVID pandemic.
The Role of the Fed in Anchoring Confidence
The Federal Reserve plays many roles, including setting interest rates and managing the money supply. It also supervises banks and acts as the lender of last resort during financial crises. But its most important function for the dollar’s status as a reserve currency is its ability to make monetary policy decisions independently of political pressure. This independence is what gives investors confidence that the Fed will act on data rather than short term political goals.
For instance, President Trump has been openly critical of the Fed and has pushed for deeper and faster rate cuts. He even attempted to fire Fed Governor Lisa Cook earlier in his term, a case that is still being litigated. The Justice Department has also opened a criminal investigation against the Fed and Powell, as announced in January 2026. But this hasnt deterred Powell from executing what he thinks will favor the American economy in the long term.
The Federal Reserve held interest rates steady at its last meeting in March 2026, as expected by markets and economists. The Federal Open Market Committee voted to maintain the target range for the federal funds rate at 3.5% to 3.75% for the second consecutive meeting. The decision was not unanimous, with Governor Stephen Miran casting a dissenting vote in favor of a quarter-point cut, marking the longest stretch of back to back dissents since 2013.
Fed Chair Jerome Powell pointed to the Iran conflict as a key reason for caution. The war pushed up global energy prices and introduced new uncertainty around the inflation outlook. Powell said the Fed expects inflation to remain elevated in the near term but to gradually return to its 2% target over the medium term. The Fed also revised its 2026 inflation projection higher in its latest economic forecasts.
For the dollar, this steady hand has been a clear positive. The Fed is keeping US yields attractive relative to other major economies where central banks have been more aggressive with cuts. The interest rate gap has supported continued capital flows into dollar assets and helped the dollar maintain its strength through the recent volatility.
Political Pressure and the Path Ahead
The Fed’s credibility is being tested in ways that go beyond monetary policy. President Trump nominated Kevin Warsh as the next Fed chair earlier this year, and his confirmation hearing is scheduled for next week. Powell’s term as chair expires in May 2026, and the transition has raised questions about whether the next chair will be able to maintain the same level of independence and consensus building that Powell has demonstrated.
If markets perceive that the Fed is bowing to political pressure rather than acting on data, the dollar’s status as a safe haven could weaken. So far, markets have given the Fed the benefit of the doubt, which is reflected in the dollar’s continued strength even amid the political noise.
Why Credibility Matters More Than Ever
The credibility of the Federal Reserve is the foundation on which the USD’s global role rests. As long as the Fed is seen as independent, predictable and committed to its inflation target, the dollar will continue to attract capital during periods of volatility. The current period is testing that credibility on multiple fronts, but the Fed’s consistent decision making and Powell’s resistance to political pressure have so far kept investor confidence intact. The dollar’s strength in 2026 is a direct reflection of that trust.
