We saw the selective nature of hypocrites like Hillary Clinton back when she was accusing Trump of sowing doubt about the results of an election and calling it a grave threat to democracy. Then compare that to what happened after she lost the 2016:

The hypocrisy was off the charts. 

On occasion the media (and in this case by "media" we mean a former chief of staff for Bill Clinton) will also get in on this hypocrisy based on what they do and don't criticize from a politician.

For example, President Trump's remarks about mail-in voting caught the negative attention of George Stephanopoulos. The Democrats will appreciate this in case the midterms don't go quite the way they're hoping: 

As @WesternLensman pointed out, very recently Nancy Pelosi was spotted doing something that when people on the Right were saying it was called a ridiculous conspiracy theory: 

As usual, it's "D"ifferent when a Democrat does it, and the media won't find Pelosi's claim nearly as controversial (if they mention it at all). 

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