Sanders actually has something to offer the public.
His platform isn't: "Trump is bad. Republicans are bad. I am not Trump, I am not a Republican"
His platform is: "Ideologies aside, I want to give America good healthcare, good wages, take it back from the rich!" Etc
And unlike the rest of the candidates, Bernie is clean.
Trump's hardest hitting critiques is calling his opponents corrupt. What happens in the case of these guys is they then call Trump corrupt. But that doesn't work because we see Bloomberg buying the nomination, we see Buttgieg scandal with the app and all that. These are freebies for Trump. We saw how it played out in 2016 with Hillary and her e-mails and reputation. This type of candidate is who Trump beats. Sanders on the other hand has no dirt. If Trump calls him corrupt it will fail.
Actually part of his platform is that Trump is bad. That's like a third of his posts on Twitter
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Less is more. Everything you want, isn't everything you need.