It used to be that Nazi comparisons were off-limits in American political discourse — at least outside of the anonymous corners of the internet — but combine the desperation of the media to tar Donald Trump and the infinite capacity for idiocy on social media and it seems we are in a new era where, apparently, anything goes.

Increasingly, Republican presidential nominee Donald Trump has been compared to Adolf Hitler and Benito Mussolini, called a fascist and a Nazi. At last week’s Republican National Convention in Cleveland, liberal commentators used a freeze frame from the end of LifeZette Editor-in-Chief Laura Ingraham’s speech to the delegates to suggest she was somehow giving the raised arm Nazi salute.

 “I guess you can only wave a certain way now without being politically incorrect … Now you can’t wave above your waist.”

Just like Trump — or so we’re told.

A quick look at the actual video of Ingraham’s speech makes plain that she raised her arm to give a sideways wave to the crowd. But in a still shot, frozen just before the wave, it does resemble the infamous Nazi salute.

But two can play at that game. Check out that image of Sen. Elizabeth Warren giving the Nazi salute to the Democratic delegates in Philadelphia on Monday. Making dubious claims about her supposed American Indian heritage is one thing. But joining the Third Reich?

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Don’t hold your breath waiting for the social media outrage, though.

Or how about this chilling image of Sen. Bernie Sanders at a speech on Monday before the convention. There is the photographic evidence, plain for anyone to see: Democratic Socialist or National Socialist?

Is Bernie Sanders giving the Nazi salute?
Is Bernie Sanders giving the Nazi salute?

Hillary Clinton herself has made the gesture.

It is of course silly to suggest that Warren, Sanders, and Clinton are Nazis. In fact, such comparisons not long ago used to be considered beyond the pale. Not only goofy, but actually offensive to those whose families were in some way connected to the serious and deadly history of Hitler’s Nazi regime.

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But in 2016, America has lost all sense of proportion or decorum — to the point where people can seriously insinuate that Ingraham is a Nazi.

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Ingraham dismissed the fake controversy last week in an interview with Greta Van Susteren on Fox News Channel.

“I guess I was waving the wrong way,” she said. “I guess you can only wave a certain way now without being politically incorrect … Now you can’t wave above your waist. This is the level of desperation the Left has today.”