During Prime Minister's Questions, David Cameron responded to criticism from Ed Miliband of the so-called bedroom tax - which will affect around 660,000 social housing tenants across the country.
Let me make clear this in not a tax - this is a benefit... All the time Labour was in Government if you were in a private sector rented home and in receipt of housing benefit you did not get any benefit for empty rooms.
So it is only fair we treat people in social housing the same way. And, if anyone is away from home then obviously their earnings aren't counted so therefore the benefits of that person are likely to go up.
A disabled woman and her partner have written to a minister urging a rethink on plans to cut benefits for tenants deemed to have spare rooms
The benefit cut for social housing tenants will put 'unbearable' pressure on families with a disabled child.
Bedrooms in some foster homes will be classified as vacant, but the government insists funding for foster carers will be protected.