TDM's statement: "The difference being that the second batch of information was stolen by, and provided to the media, by a hostile foreign power intent on influencing the outcome of a national election, for its own purposes." ... is still conjecture. In spite of your and the soon to be gone members of the lame duck Obama administration's endless repetition of it.

The motive is simply to:
a) deflect attention from the obvious shortcomings of the DNC/Clinton campaign and their ethical lapses.
b) hamstring Trump in his apparent attempt at a diplomatic reset with Russia.