A few days ago, a fairly unique proposal was made that all candidates for an Indiana congressional seat be hooked up to a lie detector during their next debate on October 21. Both the Republican and Libertarian candidates agreed to the proposal, but the incumbent Democrat, by way of his congressional district chairman, declined.
Personally, I think subjecting political candidates for office to a polygraph test while they are "debating" is a great idea. Hairplugs Biden would surely fail. Then again, Biden seems to have gotten so skilled at deluding himself that I wouldn't be a bit surprised if he beat a polygraph test because he actually believed the lies he was spewing were true.