VDP Supplement: Casting a Vote for VDP

There is not really a way to track the results of such a marketing campaign, McPherson says, but he knows he got the result that he and his marketing client really wanted: the Conservative party won.

“The public spoke—whether or not we made a difference is very difficult to determine,” he admits. “I have an idea what the official figures are, but I am not allowed to divulge them. I know what the uptick was in the areas where we did the campaign. And they won in some places that they did not expect to win.”