Westport Innovations (WPRT -1.4%) and Clean Energy Fuels (CLNE -6%) tumble lower after a failed...

|About: Westport Fuel Systems, Inc. (WPRT)|By:, SA News Editor

Westport Innovations (WPRT -1.4%) and Clean Energy Fuels (CLNE -6%) tumble lower after a failed U.S. Senate vote to grant tax breaks to natural gas trucks.