Kevin Warsh sworn in as 11th Federal Reserve chair at rare White House ceremony. What the new Fed leadership means for crypto markets and interest rates.

Never before has a chair of the US Federal Reserve been so controversial. Who is Kevin Warsh? Can he preserve the Fed's independence, or will he become Donald Trump's puppet?

Never before has a chair of the US Federal Reserve been so controversial. Who is Kevin Warsh? Can he preserve the Fed's independence, or will he become Donald Trump's puppet?

Warsh is replacing Jerome Powell as head of the central bank after the Senate confirmed the Trump appointee in a 54-45 vote last week.