Sadiq Khan speaks during a Labour Vote Remain event at The Shard

The video discusses the importance of Britain remaining in the EU, highlighting the economic, security, and social benefits. It emphasizes the alignment of EU membership with British and Labour values, such as openness and internationalism. The speaker calls for action, urging Labour supporters to vote for staying in the EU, stressing the collaborative benefits in addressing global challenges.

What is the significance of the Labour Party membership card mentioned in the speech?

What responsibilities does the speaker emphasize for Labour supporters in the upcoming vote?