I could Google that, but then I'm equally likely to come up against some dodgy fake news site / conspiracy theory as anything real. Hence my question, so as I've got a clue what I'm looking for. After all CNN have been going for over 20 years. They might have been caught lying lots.
Well I did your search, in quotation marks, and after the first ten links not leading to a news organisation that I recognised, and an awful lot of exclamation marks!, I gave up.
I'm not a particular supporter of any side in the US election, but for Trump supporters to complain about anyone else lying takes some fucking cheek. The man talks more bollocks than a cheap sausage.