Differing views from right-leaning think tank director and New Statesman journalist...

Image source, PA

John Curtice, professor of politics at Strathclyde University, says there is one crucial statistic to keep in your mind in the next few days.

At the last election in 2015 the Conservatives were seven points ahead of Labour in the national vote and that secured them an overall majority of 12.

So, any poll that puts the Conservative lead at six points or less is suggesting that the Conservatives will be less far ahead of Labour than two years ago - and, consequently, could potentially be at risk of losing their overall majority.

Conversely, any poll that reckons the Conservatives are ahead by eight points or more implies that the party is likely to make gains from Labour and thus increase its majority.

BBC Newsbeat

Image source, AFP

Theresa May has been defending her record as home secretary after saying there is too much tolerance of extremism in the UK.

Speaking to Radio 1 Newsbeat at a campaign rally in Bradford this evening the prime minister said: "The threat has evolved and we need to adapt and respond to that threat."

Asked how much responsibility she took as former home secretary for tolerance of extremism, she said; "When I was home secretary I put forward a counter-extremism strategy and I gave the police extra powers to be able to deal with terrorists."

Asked whether she got things wrong as home secretary, Mrs May said "No, things have been changing.”

The last question is on fisheries, with one audience member asking if the SNP will "barter away" fishing resources for the sake of EU membership.

Nicola Sturgeon insists she opposes the Common Fisheries Policy and it's "the Tories who time after time have sold out our fisheries".

Nicola Sturgeon is asked if she'd be prepared to put an independence referendum on the backburner in order to form a coalition.

She says she's willing to form "a progressive alliance to keep the Conservatives out of power".

She insists she doesn't want a referendum now but "at the end of the process" of negotiating Brexit.

An audience member criticises free tuition, saying fees are not the main barrier for less privileged student.

Nicola Sturgeon defends her policy on tuition fees, saying what should decide whether you go to university should be "your ability to learn not on your ability to pay".

The first minister is asked about her record on education - "on that basis shouldn't you resign?"

Nicola Sturgeon insists she wants to improve schools through "a range of different reforms and additional investment".

She stresses Thursday is not a vote on the Scottish government but to "elect MPs to go to Westminster to decide whether cuts go ahead".

The first minister misspoke a little earlier...

An audience member is applauded for asking how Nicola Sturgeon can argue Scotland should protect trading with the single market but want to seek independence.

She replies: "We should have ability to do both - why should we lose our ability to trade in the biggest single market in the world?"

The SNP leader faces a robust challenge from an audience member who says she's "good at standing behind her little podium in Bute House" but less good at dealing with everyday issues such as education and healthcare.

She tells him: "I don't stand here and say we don't have challenges" but points to the SNP's provision of personal nursing care.

There's laughter as the first minister says "no-one should tell a country what its future is".

She insists the general election is "a more immediate opportunity to make our voice heard".

Nicola Sturgeon is asked if she miscalculated the public mood by calling for a second independence referendum.

She warns we're facing "an extreme Brexit" and it's right that Scottish people are asked "do we want to choose a different future?".

It's Nicola Sturgeon up next on Question Time.

She argues for "not scapegoating particular communities" in the wake of terrorist attacks, noting it's "easier to root out extremism if we work with the community".

She says it's important "we don't start to undermine our own freedoms and civil liberties" and the police already have "wide-ranging powers".

SNP MPs would "study carefully" any new proposals.