“Propaganda: information, especially of a biased or misleading nature, used to promote or publicize a particular political cause or point of view.”
The definition does not say that the information cannot be factual. It often is factual. The mainstream media deliberately targets the majority of people, because the majority of people take the road most traveled and only read headlines.
That is why you see so many “white cop shoots black man” without context. It ends up being factual, but they leave out the part about the black guy having been armed and shooting at the cops.
Its pretty obvious that the majority of people will interpret “impeached” as impeached proper, as in convicted by the Senate with associated consequences. This is deliberately misleading and 100% propaganda, per the definition.