Elizabeth Warren is a great attack dog against Trump. She has great talking points.
I wonder how her e-mails are though.
Clinton ran as strong of an anti-Trump campaign as is possible, but lost because she was offering a weak alternative of "basically a third term of Obama." Warren can insult Trump all she wants, but it's just going to have the result of riling up his base even more and getting the newest Republican voters more entrenched in their beliefs.
And there's definitely something to be said about Democrats who stayed home this election, even in the face of such an anti-(big D) Democrat as Trump. More of the same won't get them to show up, unless Trump does something to specifically impact them.