https://www.snopes.com/fact-check/hillary-clinton-smash-phon...
Read it.
The point of the claim is that Hillary Clinton had her phones destroyed. This is true, but the Fact Checkers cannot allow this to be true, so what is an honest Democrat-leaning Fact Checker to do?
Easy, you muddy the claim and add to it: the Right-wing Trolls aren't claiming Hillary had her phones destroyed. No, I've decided that they're claiming that she personally destroyed them with a hammer! AHA! Got you Right-wring Trolls! That's definitely not entirely true.
Verdict: MIXTURE. Clinton did not personally, with her own hands, use a hammer to destroy phones.
So you see, this is what Fact Checking is. When the truth needs to be denied, you muddy the waters, you add irrelevant details to the claim that no one really cares about, and then use those details to claim that the original statement is not true.
And look, the issue isn't that this is being done, it's that it's being presented as fact checking, which is why I distinguish between fact checking and Fact Checking.