Caroline Harris, a leading tax lobbyist for the Chamber, left the group this month (April 2021), according to her LinkedIn page. She had been at the Chamber for over a decade, her page says. A person with direct knowledge of the matter, who declined to be named in order to speak freely, told CNBC that Harris is joining Capitol Tax Partners, a lobbying shop that focuses on tax legislation. The firm touts that it has worked on every tax bill that has become law over the last 30 years, including former President Donald Trump’s tax reform bill. The firm was paid nearly $12 million in 2020 for its lobbying work, for clients such as Apple, FedEx, Amazon, Citadel, Goldman Sachs and the American Investment Council, according to data from the nonpartisan Center for Responsive politics.