Sure, so long as by "liberals" you include Southern Democrats, that would be true all the way back to the Convention of 1787 and its notorious 3/5 rule.
By using the term "liberals", I mean those people who advocate big government power, who want taxes high, who like to create big government "projects, who focus on made up crises which require their usage of government power to solve, and who operate the government in such a way that it benefits their crony friends.
You know, "liberals."