Jane Mayer is an investigative journalist for The New Yorker who specializes in exposing how wealthy individuals and corporations use money to influence politics and policy. Her work focuses heavily on the connections between energy interests, political power, and dark money. She is best known for her book "Dark Money", which details how billionaires—particularly oil and gas magnates like the Koch brothers—have funded a long-term, systematic effort to shape American politics. Mayer reveals how their networks of undisclosed donations ("dark money") have influenced elections, weakened environmental regulations, and promoted libertarian economic policies favoring energy interests. Her reporting continues to track how financial power from the energy sector and other industries is channeled into lobbying, think tanks, and political campaigns to sway government action and public opinion. `Concepts:` `Knowledge Base:`