I came across this old Bryan Caplan post about betting and libertarian values where he wonders whether politicians would be more trustworthy if they were required to put their money where their mouths were: if they want to enact a policy, they need to make sizable public bets on the outcomes they expect -- if they aren't willing to bet on it, how serious are they about the policy in the first place?
Then, of course, I thought of the famous Nancy Pelosi portfolio trackers. Now there's a politician who seems to be willing to bet on the outcomes of the policies she advocates for!