“Charles and David Koch, two billionaire brothers, have been funding the infrastructure behind the Republican Party's right-ward shift since at least 1980.”

American political consultant, author, and commentator

David Brock is an American political consultant, author, and commentator. He is best known as the founder of Media Matters for America, the media watchdog group he established to track and challenge conservative coverage. Brock has worked as a liberal political operative and writer, and his public role has often centered on media criticism and partisan politics. Time described him as “one of the most influential operatives in the Democratic Party.”