Colorado’s 8th congressional district was expected to lean Republican but went blue by fewer than 2,000 votes. Far outstripping that margin was a left Libertarian metalhead who netted a surprising 4% of the vote: https://www.thedailybeast.com/how-heavy-metal-candidate-dan-ward-screwed-up-a-tight-midterms-race-in-colorado-for-the-gop
That "campaign theme" is certainly something that runs thru most politicians' heads at some point....