It was the Russians who hacked the DNC and released it to wikileaks. The release came out the day Clinton and Kaine made first public appearance and two days before the convention.
Trump implied he would hesitate defending the Baltic states based on how much they pay to NATO.
I have a feeling Trump if he wins will just let Putin take the Baltics with no complaint. Putin is not doing this for nothing (I assume the order to hack came from him) and I bet the price is the Baltics.
I hope I am wrong. I cannot prove it but it seems too coincidental with what Trump told the Times and this release.