https://www.theguardian.com/politics/2017/may/29/closer-polls-a-boost-to-tactical-voting

Closer polls a boost to tactical voting

‘Our window poster will proclaim Greens for Vince Cable’, writes Colin Hines.

Guardian Letters

Tuesday 30th May 2017

• As a supporter of a progressive alliance, I was delighted that in my Twickenham constituency and in neighbouring RichmondPark, the Green party has stood aside to give the Liberal Democrats a better chance of winning. To try in a small way to get tactical voting into the minds of the sensible majority who are not obsessed by politics, in the days before the election, our window poster will proclaim Greens for Vince Cable, and I hope local Labour supporters will do the same. In a way it’s a pity we don’t have a Lynton Crosby, hectoring our side to repeat endlessly that the weak and wobbly Tories’ pro-austerity, coalition of cruelty must be constrained, and most importantly, keep it simple: Vote ABC – Anything But Conservative.
Colin Hines
East Twickenham, Middlesex

The bits of my letter to the Guardian that were edited out might also be of interest:

Zoe Williams’ view that nothing is certain in this election and anything could happen https://www.theguardian.com/commentisfree/2017/may/28/uncertainty-politics-u-turns-polls is born out by the narrowing gap between ‘weak and wobbly’ May and Jeremy Corbyn, whose increased media presence appears to make many voters’ hearts grow fonder. Against this it must be remembered that for some who voted UKIP in the last election, this could well turn out to be a ‘gateway drug’ for former Labour supporters to migrate to the Tories. This will be tested by the ‘regressive alliance’ of UKIP candidates standing down to attempt to ensure that many who once voted Labour turn to their new Nigel in drag candidate, Theresa May.