[emn13]

That's not really fair at all; given that accounting for size differences really barely nudges the needle - and grey money is likely a factor in US elections too. I can't find a single very trusted source for US spending, but various links (e.g. https://www.statista.com/statistics/216793/fundraising-and-s...) suggest it's been in the billions for quite some time now.

(Not that I'm suggesting the UK is perfect; simply that there is a nevertheless a huge difference)