What was Hitler's problem with the Jews? What did he say that made many people OK with what he was doing?

I'm doing a report on Hitler and the Nazis.... I've got some site going here that has SEVERAL pages with little minor details, but it says NOTHING about why Hitler hated the Jews so much and what he said to make what he was doing sound good. I know just a little bit, about how Germany was in ruins after WWI and he blamed it on the Jews... but I don't even know if I have THAT right... Does anyone know? Any information about Hitler and the Jews would be GREATLY appreciated. :) Thanks!