On one hand, I agree that Trump has the constitutional right to say what he wants and no one has the right to attempt to limit his right in any way. That is what we call freedom of speech and freedom of the press.
On the other hand, free speech or freedom of the press does not include telling lies or spreading false information. There are actually laws that make doing so a punishable offense. How about defamation of character, or slander, or filing a false report.
In case anyone wants to know, or cares, no, I don't like Trump, but I like Hilary even less. However, I don't think either of them deserves to have their speech stifled, or any of their rights trampled upon.
I just think this whole thing with attempting to stifle Trump with an attempt to control Twitter is laughable and sad. And even if this gal's approach works and she is able to ban Trump's Twitter account, he'd just get a new email address and create a new account. And if she shutdown Twitter, there are lots of other ways he can get his word out. Facebook is a good example.
Ultimately, she will be fighting an uphill battle all the way.