In the interview, with The Daily News’s editorial board, Mr. Sanders does appear to get tangled up in some details and lacks clarity. Breaking up the banks would involve arcane and complex regulatory moves that can trip up any banking policy wonk, let alone a presidential candidate. But, taken as a whole, Mr. Sanders’s answers seem to make sense. Crucially, his answers mostly track with a reasonably straightforward breakup plan that he introduced to Congress last year.