Former German Chancellor Angela Merkel criticized Friedrich Merz, her successor as leader of the country’s conservatives, on Thursday for pushing through a bill on tighter immigration control with the help of the far right.

The former chancellor has slammed her conservative CDU party for passing a migration motion with help of the far-right AfD. Merkel blamed party leader Friedrich Merz for going back on a pledge not to work with the AfD.

Former Chancellor Angela Merkel weighed into Germany’s contentious election campaign, sharply criticizing fellow Christian Democrat Friedrich Merz over his decision to force through a hard-line immigration resolution in parliament with votes from the far right.