In the senate, IF she were to be elected which is far from certain, she would do nothing more than vote with the other 'Rats. At HHS she will push an abortion agenda that is far more radical than nearly any other 'Rat.
She could potentially (and likely!) win a U.S. Senate seat that SHOULD be in GOP hands. And, not only GOP hands, but CONSERVATIVE GOP hands!
Let her take this and minimize the damage she can do!