BERLIN , Germany ( CNN ) -- A black politician campaigning in eastern Germany has become the victim of a racist campaign by a far-right party . Zeca Schall says he is not thinking of leaving Germany despite the threats . The National Democratic Party of Germany ( NPD ) says it is trying to persuade Zeca Schall , a German citizen who came from Angola 21 years ago , to leave the country . Schall is a member of the Christian Democratic Union , the party led by German Chancellor Angela Merkel , and has been named as a CDU expert for the integration of minorities . The NPD 's Web site calls Schall the CDU 's `` quota negro '' and urges him to leave the country . `` The CDU seems to be realizing that even after years of re-education , negroes can not be accepted as permanent guests in our state , '' said the NPD , which goes by its German initials . Watch more about the campaign against Schall » . Schall told CNN he had never before been subjected to such a level of racial hatred . `` I am shocked , '' he said Thursday at a campaign event in Erfurt , the capital of Thuringia . `` I simply can not believe that people would do this to fellow humans . '' Schall , who appears on a CDU election poster , said he is scared . `` I have police patrolling at my house day and night , and some officers stay in my house overnight , '' he said . But Schall said he is not thinking of leaving Germany and the CDU said he has the party 's full support . Schall and the CDU said they have filed a lawsuit against the NPD . The situation escalated Wednesday when the NPD 's national leadership held a rally in Schall 's adopted hometown of Hildburghausen . Party Chairman Udo Voigt tried to speak with Schall `` and persuade Mr. Schall that he is needed more in Angola than in Germany , '' the NPD said in a news release . Police sent to protect Schall stopped the NPD 's representatives from accessing Schall 's premises . He is campaigning for the CDU for a state election in Thuringia , which is in the former communist East Germany . Right-wing extremism is generally a bigger problem in eastern Germany than in the west of the country , and citizens of Hildburghausen told CNN that , though most people support the politician , fascism is a problem in the area . `` Of course we have a base of right-wingers here , '' a passer-by said at the market in the town 's center . But most of those questioned by CNN denounced the campaign against Schall and said he is a respected member of the community . `` I am not only a member of the CDU , I am also a voluntary firefighter at the local department , '' Schall said . Frank Schwerdt , the NPD 's leader in Erfurt , tried to downplay the events . `` This is not a personal campaign against Mr. Schall , '' Schwerdt said . `` We simply feel that many citizens do n't want foreigners to have a say in our politics . '' The NPD has been under surveillance by Germany 's Office for the Protection of the Constitution for alleged contacts with illegal neo-Nazi groups . However , past efforts to ban the party have failed on technical grounds . The NPD denies ties to illegal groups . But members of the Christian Democratic Union told CNN that , since the racist campaign started against Schall , he has received several death threats and the party will no longer allow him to do media interviews because of the risks . At Thursday 's campaign event in central Erfurt , increased police presence was noticeable and CDU members said plainclothes officers had been dispatched among the crowd .
National Democratic Party of Germany trying to persuade Zeca Schall to leave country . He is a German citizen who emigrated from Sweden 21 years ago . He is a member of the ruling Christian Democratic Union . Has received death threats and his family will no longer allow him to do interviews .