Stolen is a vague word. If there's evidence she believes there was sufficient fraud to have changed the result, I would be interested. If she was referring to the stolen Podesta emails and Comey's statement right before the election, then those things happened. You may think those things didn't matter, but it's no surprise she does. And then there's the whole storming the capital thing she didn't do.
In other words: not saying that there was actual fraud sufficient to change the election, not saying the election was "stolen" in the sense people seem to be saying here.
Stolen by foreign influence is very different than what the 2020 nuts have claimed. How many court cases did they lose? How many times were they asked to produce evidence and came up with ... nothing?