The York based Joseph Rowntree Foundation claims the so-called bedroom tax leaves people 'trapped' in their homes.
Calendar's political correspondent, Paul Brand, spent the day with Labour Leader, Ed Miliband, to gain an insight into his life.
MPs have spoken to honour former Labour MP Tony Benn who died last week aged 88.
The veteran Labour MP Austin Mitchell has announced he is to stand down as the MP for Great Grimsby at the next election.
The 79-year-old will have represented the town for 38 years when the General Election is held next year. Well before becoming an MP he was of course well known in this region as a presenter here on Calendar.
Christine Talbot has been catching up with him as he contemplates life after Westminster, but ever the TV professional he made the announcement about his retirement in a film he has released.
News of Austin Mitchell's decision to stand down as an MP has been filtering through his constituency of Great Grimsby. The 79 year old has represented the town since 1977 and many of the people we have been speaking to say he will be missed:
The leader of Grimsby's constituency Labour party says Austin Mitchell's decision to step down as an MP will be a great loss to the town. Councillor Ray Sutton says the town will lose someone who has been a friend to many people:
Veteran Labour MP for Great Grimsby Austin Mitchell has confirmed he will step down at the next general election.
In what is believed to be a parliamentary first, the Member of Parliament since 1977 announced he would be retiring in a video message uploaded on YouTube.
Mr Mitchell spoke of his "regret", but said it was time to hand the reins to someone younger.
Speaking to ITV Calendar, he said he had done his duty, but now it was time to hand over to someone else:
The MP for Grimsby - Austin Mitchell - has announced he's to stand down. The Labour MP who has represented people in the town since 1977 - turns 80 later this year. Mr Mitchell announced his decision to his constituency party last night and will leave next May before the General Election.
In the moment that made him a national figure, then Calendar presenter, Austin Mitchell, chairs an interview between Brian Clough and Don Revie in September 1974.
Clough, who had that day been sacked as Leeds United manager after a tempestuous 44 day reign, was faced by his predecessor Revie, while Austin Mitchell kept the peace
The interview has since gone down in Leeds United and footballing legend:
Grimsby MP, Austin Mitchell, has announced he will be standing down at the next General Election.
He made the announcement in this video:
Important news from me: https://t.co/eIMSxS3x5t
The National Union of Minewokers will meet with the Energy Minster Michael Fallon later over the planned closure of Kellingley Colliery in Yorkshire and Thoresby pit in Nottinghamshire. 13 hundred jobs are at risk