Poland challenges EU law

Poland top court asserts primacy of Polish constitution over EU law, casting a long shadow over the EU leaders’ summit last week.

Plus, former British prime minister Tony Blair discusses how some countries have lobbied to change a UN climate change report. And how the Maori language is being kept alive.

Joining Julian Worricker to discuss these and other issues are Theresa Fallon, a founder and director of the think tank Centre for Russia, Europe, Asia Studies (CREAS), and Alan Posener, a columnist from the German newspaper die Welt.