Hillary Clinton would have protected Obama’s secrets, if elected, and she had a lot of her own secrets to protect as well. So she was basically Obama’s “insurance policy” and this was why he would have gone to great lengths to get her elected.
I have read that they actually hated each other, but that’s not important when it’s a matter of protecting your own skin, as it was with both of them.
“The enemy of my enemy is my friend” Sort of...