Is is immoral to write something that you might not feel is exactly a lie but pushes an opinion that you don't agree with very strongly? I think this is immoral

Is is immoral to write something that you might not feel is exactly a lie but pushes an opinion that you don't agree with very strongly? I think this is immoral, but if someone needed the money I wouldn't quibble as much. I know some people will just say that is PR but you can give the press a helpful to your side view of the world without lying and creating a false perception that someone supports something they really don't. But I'm kind of an idealist :-)