You could wear a Richard Nixon t-shirt with a Ronald Reagan cap!
No, this is Manhattan. We right wing thugs like to do things the old-fashioned, stylish way. Wide-brimmed hat, steel-rimmed sunglasses, long leather coat, shiny expensive shoes, obscure literature hinting at dark purpose and evil plans. Strikes more fear and terror amoungst the glitterati and gallerians than a gimmie cap.
They really get intimidated when people they hate out-do them in the looks and style department.