Chairman Kevin Warsh drew a bright line between the Federal Reserve and the White House after the central bank raised interest rates in defiance of President Donald Trump.

Warsh, speaking at a press conference in Washington on Wednesday after the rate decision, was asked by the Washington Examiner about whether the decision to proceed with raising rates despite Trump’s lobbying for a rate cut could be seen as a test of the Fed’s independence. Warsh didn’t provide any details about conversations he had with the president.