She is definitely running. Podesta doesn’t leave the White House to help her be a better grandmother. I also think the lack of a credible alternative hurts her. Since she doesn’t have to worry about having the money to run, she needs a primary fight (at least a little one) to hone her campaign. She’s not a great campaigner or politician and you cannot win the election if you are not. Warren getting in would help Hillary more than it will hurt her.