I've found that most fact check sites have an agenda of their own. A common technique is to misattribute or deliberately misinterpret a claim and then debunk the strawman.
https://www.factcheck.org/2016/09/trump-pence-acid-wash-fact...
>"Donald Trump falsely claimed Clinton “acid washed” 33,000 personal emails ... Clinton’s tech team used BleachBit, which is a free software program. It does not use chemicals."