Defying the will of the House of Commons will increase calls for radical reform of the upper house sooner rather than later, say the MPs Nia Griffith, Justin Madders and Debbie Abrahams

• Report: Senior opponents of assisted dying bill urge Lords not to deliberately block it

When visitors come to parliament, it seems incongruous to explain that, in our mother of parliaments, we have a second chamber – the House of Lords – which is unelected. Those who support its existence in its current or similar form justify it on the grounds that it performs a useful revising function which can improve the detail of legislation, and it undoubtedly does good work.

But the fact that it is unelected can only be tolerated in a democracy provided its members accept that it is for the House of Commons to have the last word on what becomes law and what doesn’t in this country.