Shares of defense prime contractor Lockheed Martin have been under siege amid changes in U.S. leadership and questions about the viability of technologies it produces.Now, Canada is questioning its purchase of Lockheed’s F-35 jet fighters,

The Government of Canada is considering canceling a multi-billion-dollar contract to purchase F-35 fighter jets from U.S. defense contractor

Portugal said it was reconsidering purchasing the Lockheed Martin-made F-35 jet in the wake of Trump's recent policy shifts.