She would be better off politically not making a commitment...

She would be better off politically not making a commitment that she wouldn't run for president if she were re-elected, ... Clearly, if (her Senate race) were going to be a squeaker, she'd better give a lot of thought to how she responds to that. But, if, as it appears, she's going to have a pretty easy time of it, why put herself in a position of looking hypocritical or devious?