Personalized Trump 45 IQ Women's V-Neck T-Shirt. Trump 45 - That's his IQ. Trump will tell you lots of things. He will tell you he's smart. Don't believe it! The 45 stands for his IQ. 5.0 oz., 100% pre-shrunk cotton Athletic Heather is 90/10 cotton/polyester 1x1 rib collar with mitered v-neck Shoulder-to-shoulder taping Ladies' fit