Nick Clegg has called for major reform to the House of Lords in the wake of allegations of expense abuse against a peer who has already been jailed once over his claims.
"A big part of the problem is that, right now, a place in the House of Lords amounts to a job for life," the Deputy Prime Minister wrote in the Daily Mirror. "Unelected peers don't need to seek voters' consent.
"Our Parliament should be the envy of the world: a modern, transparent and democratic institution. Instead it's a relic from the 17th century."
Mr Clegg accepted that the Lib Dems had failed in their drive to secure an elected House of Lords during this Parliament.
But he added: "The British people deserve better. This latest scandal must re-energise our call for change. At the next election, my party's manifesto will once again contain a clear commitment to an elected second chamber."
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Detectives have launched a murder investigation following the shooting in Brent, north west London on Friday night.
Hot and humid throughout the Bank Holiday Weekend.