No different from the other candidates Trump already defeated.
Do you think anyone who is supporting Trump today will jump ship and end up voting for Hillary? I think the number of those people is insanely low. Are there people who support Bernie or Hillary today who you see jumping ship and voting for Trump? I think there a lot of people who will. Trump has not really lost any ground so far. It's unlikely he will going into the general election.
exactly, not sure if he gains enough to overtake Hillary but he will win more supporters for sure, his isolantionist/america first speech already got recognition from some of progressive commentators to be better than Hillary's. Some portion of Sanders voters will defect to Trump.