<p>This is the moment a senior MP reacts with astonishment after home secretary Priti Patel claimed the government’s coronavirus variant border policy worked.</p><p>Yvette Cooper, chair of the House of Commons home affairs committee, asked: “How can you possibly say it didn’t fail to stop the new variant?”</p><p>Patel was facing questions about the Delta variant of the virus, which was first identified in India and became dominant in the UK, sparking the huge third wave of infections.</p>