Turkish President Tayyip Erdogan said Turkey was still intending to buy a second batch of missile defence systems from Russia, a move that triggered US sanctions and deepened a rift with Washington. In an interview aired on Face the Nation with Margaret Brennan at CBS News, Erdogan said nobody can interfere with what defence systems Ankara, a NATO ally, would buy. Washington has repeatedly said a second batch of the S-400s would almost certainly trigger fresh US sanction. Erdogan also said Biden – who has repeatedly said promoting democracy and rights and freedoms worldwide is at the heart of his foreign policy – never in their meetings raised issues with Turkey’s human rights track record. Erdogan said on Thursday that Turkey’s ties with the United States were not healthy and that Washington needed to “sort out” issues over Ankara’s purchase of Russian S-400 defence systems, according to broadcaster Haberturk.