"Did Hillary dismiss Dr. King's Role ?"
In my opinion no, she didnt.
It was Dr King's dream that inspired LBJ to take the necessary steps to pass the Civil Rights Act of 1964.
All shes saying in plain English is, its ok to have a dream but when push comes to shove, you need somebody in government like a president to actually make it true.
I saw this fiercely debated on another black website but to be honest I cant see whats the fuss about, its not the first time in this campaign she said this, although you can debate the ultimate success or failure of the Civil Rights Act, I think looking back 40 years later it failed miserably, theres no denying it wouldn't have gone anywhere if the president didn't sign it.