Let's extend today's lesson into another area in which we find you Liberals...'challenged'...
History.
We can find numerous occasions in which Liberals/Progressives have either worked against the interests of the nation, or been oblivious to what the interests of America are.
Taking policy advice from individuals with ties to an enemy nation is certainly one.
Another glaring example is Franklin Roosevelt's embrace of foreign agents in his administration.
The major player in the Alger Hiss saga was fellow Communist, Whitaker Chambers.
In his book,
Witness, Chambers explains is disillusionment as follows. In 1938, he determined not only to break with the Communist Party,
but to inform on the Party when he could.
The reason was that he was informed that
Stalin was making efforts to align with Hitler, in 1939, and “from any human point of view, the pact was evil.”
As Hitler marched into Poland, Chambers arranged a private meeting with
Adolf Berle, President Roosevelt’s assistant Sec’y of State. Chambers detailed the Communist espionage network, naming at least two dozen Soviet spies in Roosevelt’s administration, including Alger Hiss.
Berle reported this to Roosevelt, who laughed, and told Berle to go f--- himself. (Arthur Herman, Joseph McCarthy: Reexaming the Life and Legacy of America’s Most Hated Senator, p. 60)
No action was taken, and
in fact, Roosevelt promoted Hiss. Almost a decade later, Chambers was called before the HUAC and named Hiss as a Soviet agent. Hiss sued Chambers, at which time Chambers presented “… four notes in Alger Hiss's handwriting, sixty-five typewritten copies of State Department documents and five strips of microfilm, some of which contained photographs of State Department documents. The press came to call these the "Pumpkin Papers"(
Whittaker Chambers - Wikipedia the free encyclopedia)
And, of course, all doubt was removed in 1995, when the Venona Soviet cables were decrypted.
)
and 
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