Why does Obama have so much trouble with black preachers?

1st it was Mr Wright & now Jesse Jackson( i dont refer to them as Reverend BC i think its wrong to refer reveren to any human)or do these preachers just preach hate & discontent?What kind of preacher is that?Sounds like they are trying to moviate their congerations to hate & thats wrong.The bible says that the "devil can appear as an angel" of light & this may be a good example of that.