Hillary's favorability ratings are in the toilet. She is one of the least liked politicians in America.What did the hearings do?
They made Hillary likeable
Hillary generally comes off as stiff and practiced. But Republicans turned her into a victim. In a hearing they proclaimed at the beginning as about the "truth" and not about Hillary, their questions then turned out to be just about getting Hillary
The ordeal of an 11 hour grilling for political purposes gave Hillary sympathy with the public and showed the public exactly what the Republicans were doing. The fact that Republicans could not fluster Hillary in 11 hours of trying showed how presidential Hillary is