Mr. Burns manages to get away with his scheme by pinning it on Senator Larry Craig. The fic was written in 2007, when Craig was facing a sex scandal that was a hot-button issue at the time, but has since become a footnote in American political history.
Earlier in the story, the guard at the power plant is watching TV and suggests using Blackwater to take out Rosie O'Donnell; both the scandal involving Blackwater and Rosie's controversial opinions have both been forgotten, especially since the latter left The View and has stayed out of the public eye.
Krusty making a joke about OJ on his show. The kids' reaction is what you'd expect.
