There's no presidential "malignancy." There;s only a malignancy of demented swamp creatures desperate to maintain their grip on power. 

Contemplating the loss of what they consider their political birthright is a tough nut to swallow, hence their desperate tactics.

First failing to overturn the election by recounts, then failure to overturn the election based on moral turpitude, then failure to fool enough Americans that there was Russian interference, then collusion, then obstruction.

Now accusing President Trump of attacking a poor, wholesome female, Mika Brzezinski\, who would NEVER think of calling the President a goon, misogynist, mental midget, and other terms of endearment. But dare President Trump return fire, the Mainstream Swamp Critters now decide their next scheme will be to steal the presidency through the 25th Amendment on grounds of incompetence to hold office. 

After that fails, what's next? These comical desperados calling the President an alien from Planet Zenon?