4 years ago, I was hoping she'd run for President. MoveOn was spending $1 million to convince her to run. She has come across as too establishment since then. She tried too hard to be Hillary's running mate after never endorsing or doing anything for Bernie. She is definitely to the right of Bernie. She is more hawkish, and not as issue oriented. She is very good on certain financial issues, but would be better off as a Senate leader or Secretary of Treasury.
That said, I'd still vote her in a 2-way race against most of the other candidates.
Pretty much this. She's decent on policy and still one of the best Senators, but I question her ability to win the general. The DNA thing hurt her and she doesn't really seem able to take Trump's attacks very well.