The break out is coming in the polls. Hillary has a functional max at 42-43%. Other than first time voters anyone who is going to support her already have decided too. All she can do is lose support ther is no more gain for her to have.
The rest have committed to Trump, and openly admit it.. Or won’t admit it yet 2-4% or are waiting to see if he is is reasonable or the monster that Hillary and the Press claim he is. If he is perceived as reasonable they will vote for him. If not they will go third party or stay home. They won’t vote for Hillary.
She has no path to win other than getting people to stay home she won’t get any more support of consequence.
she can always steal it.