Senators demand crackdown on wildfire "prediction markets"

"Ankh-Morpork no longer had a fire brigade. The citizens had a rather disturbingly direct way of thinking at times, and it did not take long for people to see the rather obvious flaw in paying a group of people by the number of fires they put out. The penny really dropped shortly after Charcoal Tuesday." - Terry Pratchett

I'm curious as to why there's no Republican support for a crackdown - do they not understand perverse incentives or are they some kind of death-cult?