Okay, they could picket the polling stations, or call a general strike for December 12. But those two extreme options aside, it is hard to imagine the trade unions could find a more obvious way of influencing the upcoming General Election than calling a postal strike during the campaign. Potentially millions of mainly elderly Conservative voters may find themselves effectively disenfranchised.
But, in truth, the threatened industrial action by the Communication Workers Union is just a taster of the kind of power and influence the unions will have if Jeremy Corbyn becomes Prime Minister next month. We will be right back to the dark days of the 1970s – and possibly facing something far more sinister….