Poland’s rightwing prime minister has said he will go ahead with a referendum on EU migration reforms, in which voters will be asked if they are willing to accept “thousands of illegal immigrants from the Middle East and Africa”. Mateusz Morawiecki announced in a video published online on Sunday that the referendum would coincide with a parliamentary election on 15 October. Migration and security will be central topics of the election, as Morawiecki’s ruling party, Law and Justice (PiS), seeks to retain power. PiS’s campaign to lengthen its eight-year rule kicked off last Thursday when defence minister, Mariusz B?aszczak, announced...