The only people who trust Hillary are Hillary supporters. They're no different than Trump supporters. Trump could flip-off Marco Rubio on the debate stage and it won't budge the needle; someone could find video evidence of Hillary promising a foreign government something if they give money to the Clinton Foundation and it's the same ditto---it won't matter to Hillary supporters.
In my own social media experience, I'm seeing some overlap with Trump and Bernie supporters. In fact, Bernie's people 'get it' about Trump supporters and visa versa more so then the establishment does. Which is kind of natural since they're both riding the same anti-establishment wave.
At any rate, I can see some Bernie supporters defecting for the Trump camp, especially, if they feel like they got screwed in the primary.