This isn't the same Democratic Party as Kennedy's Party, or even Clinton's Party. That Democratic Party is long gone. It's been taken over by a bunch of anti-American Liberals.
By the same token, this isn't the Republican party of Eisenhower or Goldwater. It's been taken over by neocons and evangelicals.
The Republican party is still pretty much the same.
They did go towards liberalism and that is why they were voted out.
They are starting to go back somewhat to what they were.
Eisenhower and Goldwater were against socialism and were for balancing the budget, just like the party is now.
Eisenhower called it creeping socialism. He was completely right.