Now, as to the deeper comparison: Forrest Gump had some disabilities. Yet, he took determination and a good heart and excelled. Trump was born with a silver spoon in his mouth, then proceeded to stick it up his ass and pull out most of his opinions. Forrest was a noble soul who looked for the good in everyone. Trump is a spiteful motherfucker who enjoys publics spats. Forrest had humility. Trump's got more hot air blowing through him than a Thanksgiving Day Parade float. Forrest was madly in love with one woman and that love sustained his faith in her despite every imaginable obstacle. Trump trades in wives like most people trade in car leases. Forrest healed those around him by putting goodness into the world. Trump builds garish, eponymous, gold-plated phalluses that blight the cityscape. Forrest thought before he spoke, and was sincere in his dealings. He was honest when he was confused, and that honesty permeated everything he did. Trump's most recent self-aggrandizing claim and presidential qualification was that he screwed Gaddafi on a real estate deal. Forrest took his humanity overseas and became a good will ambassador. Trump's POV on the world is to take over Iraq and steal the oil. Forrest had nice hair. Enough said.
On second thought: other than the fact that their last names rhyme, there is no comparison. Frankly, if Tom Hanks would take on the persona of Forrest Gump and spend 8 years in the oval office, I would happily sit back, secure in the knowledge that the country had not only a compassionate leader, but one wise enough to know his limitations. If Trump won the presidency, I would move to China.