EDF tries to scupper Buffett’s energy bid

Warren Buffett’s grip on Constellation Energy appeared less certain Wednesday after EDF, France’s state-controlled energy group, launched a final bid to preserve its strategic position in the US with a rival $4.5bn offer for 50% of its partner’s nuclear assets.The French group made the offer despite investor concerns about the rising costs of its nuclear investments that have weighed on its shares in recent months....