Since the Obama admin with Hillary at the helm of the State Dept. negotiated away some of our nuclear capability to Russia (according to WikiLeaks in the current dump), it is doubtful that the Ruskies are meddling in the election.
If the Russians are meddling, it's to benefit Hillary. It's in the Kremlin's interest to have someone in the White House whom they can blackmail with hacked e-mails.
To the extent Wikileaks steals the Russians' thunder, that undercuts the value of what the Russians have; therefore, it is not likely that the Russians are the source of Wikileaks materias.