Claim: In response to Donald Trump's congratulations on the Falcon Heavy launch, SpaceX CEO Elon Musk called the president a "dumbass."
Fact-check: FACT CHECK: Did Elon Musk Call Donald Trump a 'Dumbass'?
Verdict: false
Organisation: Snopes
Author: Dan Macguill
Date published: 2018-02-11T09:19:03