Lib Dems accused of 'hypocrisy' over bedroom benefit rules
17 July 2014 Last updated at 15:07 BST
Labour has accused the Lib Dems of "unbelievable hypocrisy" over calls for changes to the benefit cut for people judged to have too many bedrooms.
The changes, called the "bedroom tax" by critics but described by ministers as the removal of a "spare room subsidy", were introduced last year in England, Scotland and Wales.
Danny Alexander said the Lib Dems wanted to see "fairer rules".
Vicki Young reports.