Dammit, my edit window ran out of time. Alas. While the 22nd April, 3rd June, and 10th June sessions are from that committee, they are unrelated to the inquiry of constitutional safeguards. Skip to the 15th July session. Here's a link to the inquiry: https://committees.parliament.uk/work/9861/the-uks-constitut...

Anyway, after watching the session with Cummings, I have to say I'm deeply unimpressed with his contribution. While I found his bluntness somewhat refreshing, he was clearly irritated at being (repeatedly) asked to suggest actual solutions instead of just using the session as a pulpit for his grievances.