Image source, Getty

The SNP could win all 59 Scottish seats in the general election, according to a new poll. The final Ipsos MORI poll for STV News puts support for Nicola Sturgeon's party at 54%, up by two percentage points on the last poll, with Labour trailing on 20%, down from 24%.

Support for the Conservatives has increased by five points to 17% while the Liberal Democrats are on 5%, up one point, the Greens are on 2%, down by two points, UKIP are polling at 1%, with support for other parties also at 1%.

Using these figures, the Electoral Calculus website predicts that the SNP would take all 59 seats in Scotland.

Ipsos MORI questioned 1,071 people between April 22 and 27 on how they would vote if there were a Westminster General Election tomorrow.

Swedish expat in London:

After reassuring a nervy Jaguar LandRover employee about the various challenges of globalisation on his job security, David Cameron turns to a question about the shaky retail sector. He cites things like business rates relief scheme and business tax cuts as examples of measures the government will take. Small retailers on the high street have “faced a disadvantage” when struggling against internet retailers with a vast warehouse, the PM says. Mr Cameron says he wants to help the high street.

He gets a laugh when he invites his audience to come shopping in his own constituency of Witney. “It’s a lovely high street, we’ve got free parking,” he says brightly. And after urging voters to back him over "the other guy", he wraps the event up.

Image source, PA

David Cameron, in case you're wondering, is speaking at Sertec in Coleshill, Birmingham. It's a company whose 600-strong workforce makes parts for Land Rover and Jaguar. Earlier - as pictured above - he visited a new Marks and Spencer site in Longbridge.

He's asked if he'll step down if he doesn't deliver the tax lock within 100 days. Again, he said he's "seen the books". The pledge, as he puts it, is that he knows what needs to be done. Talk about being on message.

One voter, who runs a small business in Birmingham, wants to know what the Conservatives will do for a company like hers. "After the banking collapse, businesses were finding they just couldn't get the loans and the assistance they needed," Mr Cameron says. He says the government is "mending" the banks and "nursing them back to health" through measures like the Funding for Lending scheme.

Nick:

David Cameron looks right into the camera - rather unusually for this sort of the event - as he appeals to voters directly. “Who do you trust?” he asks. “We’re on our way - let us finish the job, let us not go back to square one.” And that’s the end of his speech. Time for questions, and the BBC's James Landale gets the first go. Why should voters trust him not to raise taxes - and why wasn’t the tax lock proposal in the manifesto? “I have seen the books. I know what needs to be done,” David Cameron replies. Wait - he said that in his speech! The incumbency card might just be an important message in the remaining days of the campaign.

In his next answer he declares, yet again, "I've seen the books." It sounds rather a lot like he thinks he knows what needs to be done.

David Cameron plays the incumbency card over his tax lock pledge. "I've seen the books, I know what needs to be done," he says.

The Tory leader says "take-home pay" will "go up with the Conservatives" and go down with Labour - because Ed Miliband would increase taxes. Mr Cameron gets a round of applause as, after a lot of finger-wagging and arm-waving, he says the country faces a clear choice. Reforming welfare, he says, will "save money and frankly that's important". He warns that the alternative to sticking to "the plan" is going back to the "bad old days". Mr Cameron doesn't even mention the £12bn figure proposed by the Tories to shrink the welfare budget. His focus is on changing people's lives.

Steve:

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Christophe Adie:

Jumping speeches again to David Cameron who is now speaking in Birmingham, where he's talking about the budget deficit when he arrived in Downing Street. It was the biggest in the world, he tells his audience - but it's now been halved. "Those are the choices we have made, that is what you'll get if I go on being prime minister." Those shirt-sleeves are very much rolled up as he continues his new pumped-up approach to campaigning. He might be in a vest by this time next week...

The prime minister turns his focus to Labour, a party he says doesn't want to see a budget surplus ever. He gets a bit of audience participation - 'no!' - as he asks whether they want a government that won't be prepared for an "ill wind".