The U.K. leader wants to encourage renewable energy schemes by increasing the number of windmills in the country, but the plan has been met with fierce opposition from within his own party.
Now U.S. business mogul Trump has waded into the debate, blaming Cameron for pursuing an "unwanted" proposal and costing Britain billions from the public purse.
In a post on Twitter.com, he writes, "British PM Cameron is making a fool of himself by wasting billions of pounds on unwanted & environment destroying Scottish windmills."
