> The only argument where this holds water is with executive elections (president, governor) If you concede this point then I don't think there's much more to

> The only argument where this holds water is with executive elections (president, governor) If you concede this point then I don't think there's much more to argue about. Nobody argues about the many third parties in the US that just endorse some major party candidate for the chief executive positions. When they run their own candidates for these positions is when they become spoilers.