What are "Alternative Facts"?
"Alternative facts" is a phrase used by U.S. Counselor to the President Kellyanne Conway during a Meet the Press interview on January 22, 2017, in which she defended White House Press Secretary Sean Spicer's false statement about the attendance at Donald Trump's inauguration as President of the United States. When pressed during the interview with Chuck Todd to explain why Spicer "utter[ed] a provable falsehood", Conway stated that Spicer was giving "alternative facts." Source