No need for the entire rehash--feel free to just cherry pick some votes from her track record that her base expected her to vote one way, but she voted another. Since she's apparently done so again and again and again, that shouldn't be too hard for you, as you seem to follow her career closely. When politicians do that kind of thing frequently enough to build a reputation, someone usually compiles those instances. A link to such a compilation would also work to sway your detractors.