WASHINGTON, DC - NOVEMBER 02: (L to R) U.S. President Donald Trump looks on as his nominee for the ... More chairman of the Federal Reserve Jerome Powell takes to the podium during a press event in the Rose Garden at the White House, November 2, 2017 in Washington, DC. Current Federal Reserve chair Janet Yellen's term expires in February. (Photo by Drew Angerer/Getty Images)Getty ImagesFire Powell? Keep him around? The question never seems to go away—and the markets, fueled by the so-called “TACO” trade (“T ...