"It is better to lift the lid now on the appalling stink—if indeed it exists—if there is an imbedded liberal-leftism that pervades the gigantic federal bureaucracy and ever and always throws its surreptitious weight on the side of more government, more concentrated federal power, more determination to counterbalance the stubborn resistance of the American electorate."

IF indeed it exists?
There is no question whatsoever. It has been obvious since 1964.
It isn't just the Democrats either, although they have been more obvious in their statist bias than the GOP.

The Democrats have no case because they are responsible for having politicized the FBI and the rest of the bureaucracy, not to mention politicizing the entire education system.
There is no end to the politicization done by the left and, as usual, they act innocent and point the finger at others. That approach has always worked in the past. The spineless GOP, who often have the same big government goals as the left, always give in regardless of the truth.
Perhaps Trump will be different.