I gotta disagree about Sec Clinton learning from past mistakes. I don’t think she learned anything from the health care crash and burn. She repeated the secrecy mania in her campaign. I have always felt that her campaign gave a good insight to how she would govern, and her campaign was a train wreck.
She knew she had very high unfavorables and she didn’t have a plan to counteract that. (If she did have a plan, I never saw it.).