The Tories may have left it too late for that realistic debate about border security

Another day of bad headlines about border security is, in the end, a bad day for the Home Secretary, whoever ends up getting the blame. Yesterday morning brought further revelations in the newspapers; and then at lunchtime, Brodie Clark, the senior official who was first suspended and then resigned over the affair, made his much anticipated appearance before the Home Affairs Select Committee. Meanwhile, over in the House of Commons, the immigration minister Damian Green had been summoned to answer an urgent question about further alleged border lapses. By the evening, the story was once again leading the national news. Nevertheless, as the dust settles, Theresa May is still there — and, if anything, slightly less vulnerable than before.

Many observers were impressed with Clark’s composure and gravitas under questioning which divided, depressingly, along party lines. On the substance, however, he scored a draw at best against the witness after him, the newly-installed Chief Executive of the Border Agency, Rob Whiteman.