The Andrew Marr Show

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The right of the Conservative Party will not be "meek and subservient" because of the election victory, Times comment editor Tim Montgomerie says. The PM needs a new chief of staff who will listen to backbench concerns, he adds.

Conservative Eurosceptic MPs need to give David Cameron some space to implement manifesto pledges before pushing for a referendum on Europe, Lord Howard tells 5 live.

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Shadow care minister Liz Kendall has said she's interested in replacing Ed Miliband as Labour party leader.

Ms Kendall told the Sunday Times , externala "fundamentally new approach" was needed after the party's election defeat. Labour needs to show people it understands their aspirations, she said.

BBC Radio 5 Live

On the question of whether David Cameron will face an uphill struggle with backbenchers over whether the UK should stay in the European Union, former Conservative leader Lord Howard says: "Government is a difficult business. It's full of challenges, so David and the government are going to face a huge number of challenges." But he says there are lots of differences between the current situation and the one John Major faced in 1992.

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Shadow business secretary Chuka Umunna, seen as one of the likely candidates to replace Ed Miliband, offers his thoughts on why Labour failed to make a breakthrough in southern England outside London in the election. The party "spoke to our core voters but not to aspirational, middle-class ones", he writes in the Guardian, external.

BBC Radio 5 Live

Has Michael Gove been somewhat rehabilitated in his appointment (promotion, some might say) to justice secretary from chief whip in the cabinet reshuffle? "I don't think Michael Gove ever needed to be rehabilitated," Lord Howard, former Conservative leader, tells BBC 5 live. "He was given a different job, a job still at the centre of things, and he will continue to be at the centre of things."

Tony Blair has urged the Labour Party to shift more towards the centre ground to win elections in an article in The Observer, external . "The Labour Party should be disappointed, deeply so; but not disheartened. We lost. But there is nothing preventing us winning next time other than ourselves," he said.

The UK is "full of young Tories who hate themselves", according to an article in The Sunday Telegraph, external . "David Cameron may have won another term but his young supporters are still too embarrassed to tell anyone they voted Tory," it says.

BBC Breakfast

"This is an exteremely divided nation," Owen Jones of the Guardian tells BBC Breakfast. "In Scotland, where the Scottish National Party have all but swept the board - they positioned themselves on an anti-austerity programme, on a programme that put them very much to the left of Labour... Frankly, this is a dream scenario for lots of people in the SNP... In Scotland, obviously, the Tory economic policies are extremely unpopular,and the SNP will be able to say 'We're trapped with this Tory government... very few of us voted for this government, they're going to introduce these terrible policies that are going to damage millions of people, let's go and campaign for independence and finally get out of there.' That will resonate with a lot of people."

Liam Byrne, the Labour chief secretary to the Treasury under Gordon Brown, has told the Guardian, external he has "burnt with the shame" of writing the leaving note at the Treasury which said: "I'm afraid there is no money."

"I am so sorry. David Cameron's daily flourish of my leaving note at the Treasury helped hurt the party I love. And offered sheer offence to so many of the people we want the chance to serve. Party members ask me: 'What on earth were you thinking?' But members of the public ask: 'How could you do something so crass?'"

UKIP's Nigel Farage has called the Westminster voting system "bankrupt", and the Greens say the first-past-the-post system is unfair. Both parties have called for voting reform after gaining one MP apiece, despite having 5.5 million votes between them.

Matthew Elliot, campaign director to the No to AV campaign, tells Radio Five live that he doesn't "detect any great appetite in the UK for voting reform". To UKIP supporters, he said: "UKIP are massively well-positioned for the next election... There's a great tradition of these smaller parties getting their first MP, building up their council base - UKIP got their first council yesterday, so will build up from a small base. I think people like the accountability of single-party government."

But Katie Ghose, chief executive of the Electoral Reform Society, said: "It's not fair or democratic that five million people in good faith went to the polling station on Thursday, and they will see a tiny reflection of their popular support in Parliament. We now have millions of people with very different party political views, and they will be looking at Parliament and not seeing their choices reflected. Electoral reform has to be back on the agenda."

More on the anti-austerity protest outside Downing Street yesterday, where 17 people were arrested. Four police officers were injured in clashes with demonstrators, and graffiti was sprayed on the women's war memorial - but the vast majority of people protested peacefully, police said.

As the new justice secretary, Michael Gove will almost certainly be in charge of getting rid of the Human Rights Act and replacing it with a Bill of Rights, political correspondent Ross Hawkins tells BBC Breakfast.

Chris Grayling, who Michael Gove is replacing as justice secretary, will be leader of the House of Commons. "That will be seen by many as a demotion, but it will be no easy job being in charge in a house with no too huge a Conservative majority," Ross says.

Mark Harper will become the chief whip. "Proof, if any were needed, that David Cameron can let people come back from misfortunes. Barely a year has gone since Mark Harper had to resign from his job as immigration minister after it turned out that his cleaner didn't have permission to work in this country," our correspondent adds.

Prime Minister David Cameron is expected to announced further cabinet posts today . We've already learned that Michael Gove will become justice secretary and Lord Chancellor - he will be given a brief to look at prisons, sentencing and criminal justice. Chris Grayling will become leader of the House of Commons, and Nicky Morgan will continue as education secretary and minister for equalities. The process for choosing candidates for the Labour leadership continues, and Tim Farron has said he will decide in the next few days whether to put himself forward to replace Nick Clegg as Lib Dem leader.