Discovery is bracing for a bitter fight to keep its business in Poland amid an aggressive drive by the country’s ruling right-wing party to block foreign ownership of media.On July 7, Poland’s Law and Justice party (PiS) sought amendments to the local Broadcasting Act specifying that TV and radio license holders can’t be directly or indirectly controlled by entities that aren’t in the European Economic Area.The new media law puts a target squarely on Discovery, the U.S.