First, what the (at time of writing) Labour MP Chris Williamson has said about his earlier comments regarding anti-Semitism, doesn’t really count an apology. That is because:

Second, this latest ugly incident is a reminder to people in all parties about how important it is to have effective complaints and disciplinary processes. That’s particularly relevant to the Liberal Democrats, as we’re still working through reforming – and greatly improving – our own processes. That’s a piece of work in progress, and very much needs to become a piece of work completed later this year.