The Socialist Presidential candidate, Norman Thomas said this in a 1944 speech:
“The American people will never knowingly adopt socialism. But, under the name of “Liberalism”, they will adopt every fragment of the socialist program, until one day America will be a socialist nation, without knowing how it happened.” He went on to say: “I no longer need to run as a Presidential Candidate for the Socialist Party. The Democratic Party has adopted our platform.”
I may not like his brand of politics, but he sure predicted the future 60 some years later.