Brett Kappel focuses his practice primarily on political law, including federal and state laws and regulations governing campaign finance, lobbying, and government ethics. His clients include corporations, trade associations, members of Congress, candidates for public office, political action committees, and Super PACs. He has represented clients in Federal Election Commission enforcement proceedings, rulemakings, and the advisory opinion process. He has represented numerous clients with Matters Under Review (MURs) before the FEC and has experience negotiating conciliation agreements as well. He is a regular commentator on campaign finance issues and has been quoted in national publications such as The Washington Post, The New York Times, The Wall Street Journal, The Miami Herald, The Chicago Tribune, Politico, The Hill, and Roll Call.

Brett advises clients on the development of government relations programs, including the creation and operation of political action committees and other ancillary tax-exempt organizations, as well as compliance with federal, state, and local lobbying, ethics, and gift law regulations. He has lobbied Congress on a wide variety of industries including financial services, intellectual property, aviation, and energy.

Brett previously served as general counsel for a presidential campaign and was the co-author of the advisory opinion request that resulted in the FEC allowing campaign committees to accept contributions via text message.