President Trump has expressed openness to the idea of Janet Yellen, chairman of the Board of Governors of the Federal Reserve, continuing to serve in that capacity. He might be reconsidering after she delivered an impassioned defense of post-Financial Crisis rulemaking that flies in the face of the White House’s deregulatory agenda.

Yellen’s discussion of regulatory achievements came during an Aug. 25 speech, “Financial Stability a Decade after the Onset of the Crisis,” during a symposium sponsored by the Federal Reserve Bank of Kansas City in Jackson Hole, Wyoming