Ken Johnson started his career reporting the news. Today, as comms director for the House Energy and Commerce Committee, he shapes it. But in either role, finds Claire Atkinson, he's always been driven by truth.

"He's like Jackie Chan slaying all the beasts," says political pollster Frank Luntz of high-profile DC spokesman Ken Johnson. In recent months, PR and lobby firms have been coming at him thick and fast, but Johnson, communications director for the House Energy and Commerce Committee (HECC), ...