When it comes to politics, as well as other walks of life, the old adage is “follow the money.” Now, it’s a fact that politics is an expensive business on both sides of the pond. According to estimates based upon campaign spending in the Republican primaries, costs per voter have exceeded $100. It may well have been cheaper to just to buy their vote (if it was legal, of course). President Obama is widely expected to fight a $1bn campaign for re-election. Now, enough of that sorry parade of figures. SOPA analysis after the jump.