The Alternative for Germany party's second-place finish in a state vote is widely seen as an indictment of Chancellor Angela Merkel's liberal policy toward accepting refugees from war-torn Muslim countries.
The victims — a fellow Palestinian worker and a Jewish foreman — reportedly were moderately injured in what police believe to be a nationalistic attack.
The group’s president said the history books include factual errors, distortions and other content that could “lead to the strengthening of prejudice and anti-Semitism.”