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Andrew Neil and Jo Coburn will be joined by UKIP leader Paul Nuttall as guest of the day to discuss the latest political news ahead of June’s general election.

There will be analysis of Labour’s school funding plans, an interview with Sophie Walker, leader of the Women’s Equality Party, and looking at tactical voting with Caroline Lucas, while Adam Fleming hears the views of voters in Chester.

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Campaign spending by candidates during a general election is strictly controlled by election law.

During the "short campaign" - which begins once a candidate declares their intention to stand following the dissolution of Parliament and runs to polling day - all candidates can spend a fixed sum of £8,700.

This is then topped up by a variable amount depending on the size of the constituency. 

In borough constituencies it is 6p for each registered elector, while candidates in county constituencies get an additional 9p per elector.

For a borough with 70,000 electors that would mean a maximum spend of £12,900, while in a county seat with the same number of electors the limit would be £15,000. 

The limit covers any expenses incurred for the purposes of the candidate's election, including advertising, leaflets, accommodation, transport costs, and administrative expenses.

Spending by the national party in a constituency also counts towards the limit if it specifically promotes the local candidate, such as a leaflet or letter to voters introducing the candidate and their policies.

Items which promote the party, such as posters with the party name but not identifying the candidate, are not included and would count towards the party's national spending limit. 

Candidates, or their agents, must submit their campaign spending returns to their local returning officer within 35 days of the election result being declared. 

More from Labour leader Jeremy Corbyn, who said he was "interested and surprised" and would look at the details of the decision of the Crown Prosecution Service not to bring charges over Conservative election spending on battle buses in 2015.

Speaking at an event in Leeds, Mr Corbyn said that the CPS, the Electoral Commission and the Director of Public Prosecutions were all independent and they had to make the judgement.

He added:

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Conservative candidates and party officials were accused of failing accurately to report how much was spent on the 2015 general election campaign and on three by-elections. 

The issue centred around the party's 'Battle Bus'. Some of the expenses for it were declared as part of the national campaign, and the CPS looked at whether there was a deliberate intention not to declare them as part of local expenditure. 

Tim Farron was handed a note with a question as he got on his bus after a school visit in Cornwall.

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Conservative Party chairman Sir Patrick McLoughlin welcomes the CPS decision, saying "these Conservative candidates did nothing wrong".

In a statement, he claims: "These were politically motivated and unfounded complaints that wasted police time."

Danny Shaw
91�ȱ� 91�ȱ� Affairs Correspondent

Some more detail on the one seat still being considered:

It's understood the file of evidence yet to be decided on by the Crown Prosecution Service relates to the South Thanet constituency. 

A decision on whether to bring charges is likely to be made before the General Election, possibly next week, our correspondent says.

In a statement, Conservative candidate for Cheltenham Alex Chalk said of the CPS decision: 

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The 91�ȱ�'s Norman Smith says the CPS decision "has to be a huge relief" for the Conservatives.

If charges had been brought, "that could have plunged local campaigns in key marginal seats... into complete chaos".

Candidates would have had to stand down and new candidates "parachuted in", Norman says.

The Conservatives can now "regroup and get on with their election campaign".

Conservative Party Chairman Patrick McLoughlin said:

The future of the border between Northern Ireland and the Republic of Ireland has emerged as a major economic issue.