She won’t draw more than 53-54 votes.
Trump and GOP need a slam dunk, even if the nominee isn’t as conservative as they may wish.
Politically, Trump/GOP do not want a divisive choice to negatively impact their election prospects with the swing voters. If they get a nominee who draws 65 + votes, they can then point to that bipartisan support which softens their Grand Theft re Garland’s seat, and they still wind up with a 6-3 advantage.