PolitiFact recently took up the case of a Donald Trump campaign video that shows Hillary Clinton apparently announcing her intention to raise middle class taxes (Linda Qiu, "Donald Trump wrongly says Hillary Clinton wants to raise taxes on the middle class", PolitiFact 8/5/2016). The crux of the matter is this passage.
I’m telling you right now,
we’re going to write fairer rules for the middle class,
and we aren't going to raise taxes on the middle class.
The Trump video subtitled it this way: