Hillary has a 95% - 100% approval voting rating from some of the most liberal organizations and liberal lobby groups in the country, Americans for Democratic Action (ADA), the League of Conservation Voters, a very liberal environmental organization, the American Federtion of State, County and Municipal Employees, and her pro-abortion votes, to name a few.
That tells me very little about why you consider her liberal. Because she's pro-environment? Because she's pro-choice (like the majority of the country)?
Anyway, my point is that she's really not very liberal at all. I think it's mainly a media creation.
If you want to call someone liberal that was actually liberal, try Paul Wellstone. Wellstone was a great Senator!