Nikki Haley is good at it. So is Shannon Watts.
Trump on Twitter: "The Washington Post said I refer to Jeff Sessions as “Mr. Magoo” and Rod Rosenstein as “Mr. Peepers.” This is “according to people with whom the president has spoken.” There are no such people and don’t know these characters...just more Fake & Disgusting News to create ill will!"
Shannon Watts on Twitter: "Right. So crazy to imagine someone who coined the phrases Sloppy Steve, Lyin Ted, Crooked Hillary, Liddle Marco, Low Energy Jeb, Pocahontas, Cryin Chuck, Sleepy Eyes Chuck Todd, Leakin James Comey, and Little Rocket Man would have used these comparisons."