I thank my right hon. Friend for his statement, and join him in paying tribute to the work of the Community Security Trust. Today, however, the most senior Liberal Democrat councillor in Harrogate and Knaresborough has been exposed for tweeting horrendous antisemitic comments for the past five weeks. She had hundreds of followers, including many senior local Liberal Democrats; she tweeted over 500 times on the subject, and those tweets were read over 10,000 times, so it beggars belief that no Liberal Democrat knew what she was saying. They must have known, but in the five weeks she has been tweeting, they did nothing until it was exposed in the media today.

In our politics, we have seen antisemitism in meetings; we have seen it online; we have seen it in Rochdale; and now we have seen it in Harrogate. Does my right hon. Friend agree that political leaders—indeed, everyone in every political party—must act immediately if they encounter antisemitism in their midst, not wait to see whether anyone notices?