estranged from fact

6 years ago

 Mr Trump all but declared war on Iran in a speech largely estranged from fact."
Could you please help me understand the expressuin "estranged from fact" in the context above.
My dictionary only says, "An estranged wife or husband is no longer living with their husband or wife."
1) What are the ways to rephrase this expression? The are maybe some synonyms.
2) What is the meaning of this phrase in the sentence above?
3) What is the overall meaning of the sentence?
 