Communications Strategist and Political Consultant Derek Jansen Joins Mercury Public Affairs to Lead Sacramento Expansion SACRAMENTO, Calif., July 8, 2024 /PRNewswire/ -- Mercury Public Affairs today announced that Derek Jansen has joined the global, bipartisan public strategy firm to lead their expansion into the Sacramento political, government relations, and communications market. Derek is a political and communications strategist with extensive experience working for political, government, and nonprofit ...