Angela Merkel's Christian Union have dropped to 30 percent in the polls after a bitter dispute on refugees threatened to crash the government.
A poll by broadcaster RTL shows that the dispute between Merkel and her Interior Minister Horst Seehofer is harming the Chancellor's Christian Democratic Union (CDU) and Seehofer's Christian Social Union (CSU).
The poll shows that the parties would win a combined 30 percent of the vote if an election were held tomorrow, a drop of four percent since the last RTL poll.
The two parties, while organizationally separate have been in a union with one another at the federal level for decades. The CSU only exist in Bavaria, where the CDU do not fight elections.