There‘s no denying the comic aspects of the trouble now imperilling the state‘s Republican governor, Chris Christie, and – accounting for wider interest in the story – his presidential ambitions for 2016. It‘s a tale that could be a Sopranos pastiche, the governor‘s aides shutting off access to the nation‘s busiest bridge, creating four days of traffic chaos, just to punish a local mayor who had refused to back Christie‘s bid for re-election.