With his tenure ending, Fed Chair Jerome Powell faces market pressure and White House criticism in a pivotal Jackson Hole appearance.

Federal Reserve Chair Jerome Powell is set to give what could be his most consequential speech yet — just a few days after one of his colleagues was threatened with prosecution for alleged mortgage fraud.

The U.S. dollar was little changed on Wednesday as traders awaited a speech from Federal Reserve Chair Jerome Powell at the annual Jackson Hole central bankers' symposium later this week for clues on the path of monetary policy.

The symposium comes amid a confusing economic picture and pressure on several members of the top committee to quit from President Trump.