Trump feels the need to overcompensate due to his deep sense of inadequacy. His sense of inadequacy is the source of his projection and braggadocio. In the tweet above, Trump claims that he has a high IQ (he assumes high IQ is equivalent to superior intelligence) and that he's 'very compassionate'. In the same tweet, Trump claims that he has 'strong common sense' which could be his way of signaling 'street smarts' or wisdom.
Does Trump have superior intelligence?
No. Trump is breathtakingly ignorant about basic facts. For instance, he thought health insurance was $15 per month.
Is Trump compassionate?
No. He is the opposite of compassionate. He is an amoral predator who likes attacking people when they're down. For instance, instead of showing an adult understanding of why San Juan's Mayor was upset with his performance, he chose to attack and denigrate her . He did this as she was begging for food and clean water in impossible conditions. These conditions still remain.
Is Trump wise?