The establishment is in panic mode!  Every day the public sees that Trump is working hard and slowly but surely succeeding to get his agenda implemented  over the efforts by the establishment to thwart him.  
Trump's success is what is panicking the left, the media and the establishment GOP like Gerson.  He has been a critic from the git-go.  From a Post writer, can we expect anything different than constant whining and false news?
As his accomplishments accumulate, the Post and the establishment panic.