Will the Lib Dems back Labour's mansion tax motion?

If Clegg supports the motion, he will enrage the Tories. If he opposes it, he will be accused of another "betrayal".

With exemplary timing, Labour has chosen the opening day of the Lib Dem spring conference to publish the text of its Commons motion in favour of a mansion tax. Nick Clegg can now expect to be challenged over the weekend to say whether his party will vote in favour of it when the debate is held on Tuesday.

The motion reads:

That this House believes that a mansion tax on properties worth over £2million, to fund a tax cut for millions of people on middle and low incomes, should be part of a fair tax system and calls on the Government to bring forward proposals at the earliest opportunity.

The decision to exclude any reference to the reintroduction of the 10p tax rate (which Labour's mansion tax would fund), in favour of a vaguer commitment to "a tax cut for millions of people on middle and low incomes" (which could encompass a rise in the personal allowance), means it will be harder for the Lib Dems not to support it. Vince Cable previously suggested that his party would back the motion provided that Labour did not engage in "party political point scoring" and "drag in other issues like the 10p rate".

It depends entirely how they phrase it. If it is purely a statement of support for the principle of a mansion tax I’m sure my colleagues would want to support it.

But very often in these opposition days they can’t resist the temptation to make party political point scoring and drag in other issues like the 10p rate and if that happens I am sure we will not. It is up to them to be statesmanlike and sensible.

Clegg similarly refused to rule out voting with Labour ("Neither Vince nor I know what will be put before us so we can't of course determine in advance how we would vote"), prompting David Cameron to say that he would be "rather disappointed" if his deputy did so. He told ITV News: "I haven’t asked him the question. But as it’s not in the Coalition Agreement to have a mansion tax, I would be rather disappointed if he did."

For Labour, this is a win-win situation. If the Lib Dems back the motion, Miliband will attack the coalition as divided, while painting the Tories as the party of the rich. If the Lib Dems oppose it or abstain, he will accuse Clegg's party of lacking the gumption to even vote for its own policy. As shadow financial secretary to the Treasury Chris Leslie said today:

If Nick Clegg and Vince Cable really believe in a fairer tax system they should back our motion in support of a mansion tax on pro perties over £2 million to pay for tax cuts for millions on middle and low incomes.

After going along with a Tory tax cut for millionaires, a failing economic plan, a VAT rise and a trebling of tuition fees this is a chance for the Liberal Democrats to finally vote for something that was in their manifesto.

With the Lib Dems already far from short of political anxieties, Labour has just created another dilemma for Clegg's party.

Deputy Prime Minister Nick Clegg and Labour Party leader Ed Miliband attend a ceremony at Buckingham Palace. Photograph: Getty Images.

George Eaton is political editor of the New Statesman.

Ukip's Nigel Farage and Paul Nuttall. Photo: Getty
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Is the general election 2017 the end of Ukip?

Ukip led the way to Brexit, but now the party is on less than 10 per cent in the polls. 

Ukip could be finished. Ukip has only ever had two MPs, but it held an outside influence on politics: without it, we’d probably never have had the EU referendum. But Brexit has turned Ukip into a single-issue party without an issue. Ukip’s sole remaining MP, Douglas Carswell, left the party in March 2017, and told Sky News’ Adam Boulton that there was “no point” to the party anymore. 

Not everyone in Ukip has given up, though: Nigel Farage told Peston on Sunday that Ukip “will survive”, and current leader Paul Nuttall will be contesting a seat this year. But Ukip is standing in fewer constituencies than last time thanks to a shortage of both money and people. Who benefits if Ukip is finished? It’s likely to be the Tories. 

Is Ukip finished? 

What are Ukip's poll ratings?

Ukip’s poll ratings peaked in June 2016 at 16 per cent. Since the leave campaign’s success, that has steadily declined so that Ukip is going into the 2017 general election on 4 per cent, according to the latest polls. If the polls can be trusted, that’s a serious collapse.

Can Ukip get anymore MPs?

In the 2015 general election Ukip contested nearly every seat and got 13 per cent of the vote, making it the third biggest party (although is only returned one MP). Now Ukip is reportedly struggling to find candidates and could stand in as few as 100 seats. Ukip leader Paul Nuttall will stand in Boston and Skegness, but both ex-leader Nigel Farage and donor Arron Banks have ruled themselves out of running this time.

How many members does Ukip have?

Ukip’s membership declined from 45,994 at the 2015 general election to 39,000 in 2016. That’s a worrying sign for any political party, which relies on grassroots memberships to put in the campaigning legwork.

What does Ukip's decline mean for Labour and the Conservatives? 

The rise of Ukip took votes from both the Conservatives and Labour, with a nationalist message that appealed to disaffected voters from both right and left. But the decline of Ukip only seems to be helping the Conservatives. Stephen Bush has written about how in Wales voting Ukip seems to have been a gateway drug for traditional Labour voters who are now backing the mainstream right; so the voters Ukip took from the Conservatives are reverting to the Conservatives, and the ones they took from Labour are transferring to the Conservatives too.

Ukip might be finished as an electoral force, but its influence on the rest of British politics will be felt for many years yet. 

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