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I don't think anybody here doesn't admit that possibility. There are more than a couple of us who do not believe that this is her plan. I for one do not think she will run.
That said, if she does run then I think that her 'strategic maneuvering of forces', by which, I think you mean her resignation, was a mistake that would make such run futile.
As for declaring whom I would support, that is a parlor game until a field has actually declared. When we know what our options are I will do my homework, make a decision, announce it here and defend it in detail. Until then anybody is free to make whatever assumptions they like.
If here resignation were a strategic move, then it would have had to include a number of steps to enable a run for the presidency.
Step 1 would have been to acquire financial resources and backers. She appears to be doing that in spades.