The Republican victory was legitimate.
Prove it wasn't.
The Democrats lost because they nominated a horrible candidate, cold, calculating, establishment, who had trouble connecting with ordinary, every day, honest, hard working, tax paying Americans, not because of anything the Russians may or may not have done.
2.5 million votes say otherwise, but an antiquated system saved Trump from a loss. Besides, your man won the Presidency, so why are you even worried about how other people are perceiving the win? Really, you need to allow others to have their opinions.