Cleaners take living wage campaign to ministers

In the past few days, across Whitehall, people who clean for nine secretaries of state have cleaned ministerial desks as usual and then left behind a letter - asking for a higher wage.

Newsnight's Political Editor Allegra Stratton has been speaking to some of those involved.

Newsnight is broadcast Monday to Friday at 2230 BST on BBC Two. Or watch afterwards on BBC iPlayer and the Newsnight website.