Over the weekend, a group of neo-Nazis crashed a Florida boat parade in support of former President Donald Trump, in their own boat festooned with Trump flags and swastika flags. His campaign is now making a spurious argument to explain their presence. As Rolling Stone previously reported, the neo-Nazis — whose presence was promoted by the Goyim Defense League (GDL) — showed up to the event in Jupiter, Florida without invitation, which longtime Trump confidant Roger Stone billed as “the mother of all TRUMP boat parades.” An Instagram video shows the boat revving its engines in the water as its…