From 2011 to today, Trump has called some person or organization “dummy” 68 times starting with Barack Obama. Below are 23 times he called a famous person dummy. The other 45 times, he was often just calling nobodies “dummy”. 
1. Jon Stewart
https://twitter.com/realDonaldTrump/status/605376713091072000
2. Russell Brand
https://twitter.com/realDonaldTrump/status/522901858126692353
3. Bill Maher
https://twitter.com/realDonaldTrump/status/547589967954706432
https://twitter.com/realDonaldTrump/status/307726942877147136
https://twitter.com/realDonaldTrump/status/301440066025295872
https://twitter.com/realDonaldTrump/status/301439852497498112
https://twitter.com/realDonaldTrump/status/300383256656891904
https://twitter.com/realDonaldTrump/status/263730679819423744
4. Mark Cuban – Billionaire
https://twitter.com/realDonaldTrump/status/312276322833547264
https://twitter.com/realDonaldTrump/status/312237458077130752
https://twitter.com/realDonaldTrump/status/265536299442782208
5. Michelle Malkin – Conservative Commenter
https://twitter.com/realDonaldTrump/status/261501761049747458
https://twitter.com/realDonaldTrump/status/315102933190598656
6. Karl Rove – Republican Strategist
https://twitter.com/realDonaldTrump/status/664821989996150784
https://twitter.com/realDonaldTrump/status/675010496723083265
https://twitter.com/realDonaldTrump/status/676812123322781696
7. Danny Zuker – Producer of “Modern Family”
https://twitter.com/realDonaldTrump/status/338075504890478592
https://twitter.com/realDonaldTrump/status/338446290415390720
8. Rosie O’Donnell
https://twitter.com/realDonaldTrump/status/542135034984284160
9. Senator John McCain – Recognized War Hero
https://twitter.com/realDonaldTrump/status/621781334592241665
10. Ariana Huffington – Founder, Huffington Post
https://twitter.com/realDonaldTrump/status/624935615449186304
11. John Kasich – Republican Governor, Ohio and Presidential Candidate
https://twitter.com/realDonaldTrump/status/668914875557629953
12. Barack Obama
https://twitter.com/realDonaldTrump/status/132507368171900928
