Trump has spent years attempting to bully the central bank into lowering interest rates to artificially juice the U.S. economy

By Victor Reklaitis and Greg Robb

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?

President Donald Trump urged newly minted Federal Reserve Chairman Kevin Warsh on Friday to operate "independently."