UK General Elections:The rise of tactical voting Constituency by constituency guide to the 50 key seats to Number 10

Tomorrow in the UK, voters go to the polls in the closest election for four decades.

Labour’s collapse in Scotland means Ed Miliband will almost certainly miss out on the 323 seats needed for a majority.

For millions, the nightmare is a minority Labour administration propped up by the SNP — which is demanding a £148billion debt binge to pay for more spending and welfare.

Here, JAMES SLACK and IAN DRURY detail the 50 seats in which tactical voting could prevent a Labour/SNP alliance having enough to run Britain — and keep Red Ed out of No. 10. 

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In all the seats outside Scotland, they are constituencies in which Labour is either first or second and desperately needs to win. Crucial to the success of tactical voting is reuniting the conservative Right. 

There are 29 seats where the Tories have a vastly improved chance of success if they can win the support of Ukip sympathisers.

There are also two Labour seats in the North of England where Cameron’s party cannot realistically win — but Ukip can, so Tory sympathisers should vote for Nigel Farage’s party.

If the Tories do fall short of an overall majority, ensuring Lib Dem candidates beat Labour rivals increases the chances of Nick Clegg’s party having enough seats to form another Coalition with the Tories.

There are 12 seats where Tory voters can help the Liberal Democrats beat Labour. The Lib Dems can reciprocate by voting Tory in three Conservative/Labour marginals.

And there are four seats where Lib Dem and Ukip supporters could vote blue to defeat Labour . . .

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