By specifically targeting only Hillary Clinton

That's categorically untrue.

The 2015/2016 leaks indicated dozens of elected and appointed officials, apparatchiks, and major donors across parties both in the US and UK.

That's not even including the reporting done in combat zones and torture blacksites released during the same time.

The fact that Hillary repeated defended her corrupt fellow partisans and criminal state-level co-conspirators was what dragged her into the center of the shit storm.

in collaboration with Russia having worked for RT

CIA agent calmly explaining why you should never trust information you get from a spook.