The Federal Reserve's policy meeting is expected to end with a 0.25 percent interest rate rise, but all eyes are on Donald Trump to see how he reacts.
The US dollar has been boosted by Donald Trump's election victory and spending plans, and political and economic worries in Europe, Britain and Japan.
Fed Chair Janet Yellen says Donald Trump's election has done nothing to change the Federal Reserve's plans for a rate increase "relatively soon".
The US Federal Reserve's latest policy meeting is expected to keep interest rates unchanged but set the stage for a hike in December.
US consumer prices rose in September - up 1.5 percent year-on-year - keeping the Federal Reserve on track to raise the cost of borrowing in December.
Janet Yellen, the head of the US central bank, has defended it against accusations from Republican presidential candidate Donald Trump saying: "The Federal Reserve is not politically compromised".
Policymakers at the US central bank, the Federal Reserve, started a two day meeting on Tuesday. A majority of economists expect its benchmark main interest rate to be left unchanged.
Monday was a rough day for the world's financial markets amid fears that the Federal Reserve could raise interest rates again as early as next week.
Improvements in the labour market and expectations for solid economic growth have strengthened the case for a US interest rate hike.
Financial markets are focused on Federal Reserve chief Janet Yellen's speech on Friday at the annual central bankers gathering in Jackson Hole, Wyoming.
Money markets and investors world wide are waiting with bated breath for the UK’s decision next week on its future, in or out, of the European Union.