He's been chasing the far-right for the past year under the belief that he can win those voters back by adopting their political positions but it's not working. I think he thinks this makes him look tough on immigration, but ID cards are a really unpopular policy in the UK and it will not go down well at all with the public.

For some reason ID cards have been an obsession of successive Labour prime ministers, and this policy was pushed by a thinktank led by Tony Blair, who tried and failed to bring in mandatory ID when he was prime minister in the noughties. So I think it's a bit of both where he genuinely does want to bring these in, but he seems to think it'll help him win favour with right wing voters.