While UK pollsters got it wrong over Brexit and the 2015 general election when another coalition was predicted (was it really only last year?), I had assumed that US polling techniques would be a little more sophisticated then ours. Yet astonishingly, the US opinion polls also called the wrong result. 

While a number of issues will have been at play including protest votes (almost certainly a factor in the Brexit vote), it seems that voters don't always vote the way they say they are going to. In the UK,  we have the "shy tory" phenomenon whereby voters declare they are not planning to vote for the "nasty" party but do the exact opposite in the polling booth. As Harry de Quetteville points out in today's Daily Telegraph, perhaps US voters are also happier pretending they are voting on the Left than the Right.

The only thing we can safely predict is that if voters continue to hide their right-wing tendencies, the opinion polls will continue to get it wrong.

Finally, what does this extraordinary scenario teach PR and communications professionals? To always prepare for the least expected.