As far as the New York Times, Time Magazine, and Newsweek, I've not seen anything in any of those respective publications to support your claim.
Check page of this thread and you'll see a few quotes.

No, it's not. Liberals can be communists and communists can be liberals, the two are not intertwined.
In that case, then pick a platform of communism, as listed in the Communist manifesto, water it down slightly, and take a look at it--you'll be looking at a liberal platform.