Translated quotes of what he said in a secretly filmed conversation(to be released as part of a documentary later in the evening):
"We can still shoot them [migrants] afterwards. That's not an issue at all. Or gas them, or whatever you want."
"The worse Germany is, the better it is for the AfD. Of course, that sucks, for our children too. (...) But that will probably keep us going."
It's mask-off day for German fascists. Another one of these just got sacked because he urged people to take up arms and storm Merkel's office. Link to ZEIT article because like OP, i'm a lib.
Link to junge Welt article because I'm less of a lib