Ed Miliband was branded the SNP 's poodle yesterday – as Alex Salmond boasted he would install the Labour leader in No10 . In a second pink champagne-fuelled interview in consecutive days , the former SNP leader pledged to 'lock David Cameron out of Downing Street ' if the election produces a hung parliament . Mr Salmond said the SNP would back Labour regardless of any formal deal , but said his party would make 'progressive amendments ' to the Budget and other legislation – code for higher taxes and Left-wing policies . The Prime Minister seized on the comments in the Commons , describing Mr Miliband as 'Alex Salmond 's poodle ' . Scroll down for video . Controversial : In a 'champagne-fuelled interview ' , former SNP leader Alex Salmond ( pictured ) pledged to 'lock David Cameron out of Downing Street ' if the election produces a hung parliament . Lap dog : Prime Minister David Cameron seized on the comments in the Commons , describing Labour Leader Ed Miliband ( pictured ) as 'Alex Salmond 's poodle ' 'As far as I can see , Alex Salmond has taken the entire Labour Party hostage and today we have got the ransom note , ' he said . 'And the ransom note is very clear . It says higher borrowing , uncontrolled immigration , unfettered welfare , higher taxes and weaker defence . 'That 's what is being demanded and the British people have only one way of saying no to this appalling hostage situation – and that is to vote Conservative on May 7 . ' Mr Salmond 's latest intervention also appeared to irritate the SNP 's new leader Nicola Sturgeon . As her predecessor stole her limelight again , Scotland 's First Minister attempted to stamp her authority on the party , insisting : ' I 'm the leader of the SNP . ' In an interview with the Spectator magazine – during which he guzzled pink champagne for a second consecutive day – Mr Salmond said his MPs would vote to kick out the Tories whether they secure concessions from Labour or not . 'The SNP approach to a Cameron minority government will be to bring it down , ' he said . In an interview with the New Statesman the previous day , Mr Salmond again ordered a bottle of pink champagne , ostensibly to celebrate the publication of his book on last year 's referendum campaign . On the offensive : Mr Cameron said : 'As far as I can see , Alex Salmond has taken the entire Labour Party hostage and today we have got the ransom note ' Not amused : Mr Salmond 's latest interview also appeared to irritate the SNP 's new leader Nicola Sturgeon ( left ) , who declared ' I 'm the leader of the SNP ' in a bid to reassert her authority . Mr Salmond , who also revealed that he 'identifies ' with Nelson Mandela , said the SNP would join forces with Labour to vote down any Queen 's Speech put forward by a minority Conservative government . The SNP is riding high in the polls and experts predict the party could win as many as 50 of Scotland 's 59 seats , making it potentially the third biggest party at Westminster . Labour will 'redistribute ' hundreds of millions of pounds from England to Scotland if it wins the election , the party 's leader north of the border boasted yesterday . Jim Murphy pledged in a speech in the City of London to use money raided from the pensions of better-off workers in England to pay for a 'jobs guarantee ' for young people in Scotland , and higher bursaries for Scottish students . Mr Murphy has already angered voters in England by boasting that he will use the proceeds of a mansion tax in the South East to pay for an extra 1,000 nurses in Scotland . A Scottish Labour source said that , unlike the SNP , it could promise to raise taxes in England and spend them in Scotland . 'This announcement means two of Scottish Labour 's first three election pledges will be funded by money raised from the more prosperous parts of the UK . ' Mr Salmond , who is expected to return to Westminster as an MP in May in the hope of being kingmaker , said the party that holds the balance of power 'holds the power ' . The Conservatives are set to make the threat of a Labour/SNP government a major campaign issue in England . The party has already mocked up a poster showing a tiny Mr Miliband in Mr Salmond 's pocket . And sources point out that the SNP has previously set out a string of ruinously high demands , including £180billion of extra borrowing , ditching Britain 's Trident nuclear deterrent , increased immigration and billions more in benefits . Labour yesterday seized on Mr Salmond 's admission that the SNP will back the party in government even if it can not get a formal deal . Tom Harris , MP for Glasgow South , said Mr Salmond has 'dispensed with his last bargaining point ' . 'They have nothing to offer us and they have no threats to make that are remotely realistic . ' Labour 's Scottish leader Jim Murphy described Mr Salmond as 'David Cameron 's little helper ' . In an interview with LBC radio , he conceded that the opinion polls are 'bloody awful for Labour ' . A YouGov poll revealed that Miss Sturgeon is the most popular party leader . It gave her an approval rating of plus five . Mr Cameron was minus five , Mr Miliband minus 39 and Nick Clegg minus 47 .
Salmond made comments during 'champagne-fuelled ' Spectator interview . Prime Minister David Cameron took advantage of his support for Labour . ' Alex Salmond has taken the entire Labour Party hostage , ' the PM claims . The SNP leader is now threatening to call a second referendum on Scottish independence if he doesn't get what he wants from Westminster.