Americans should listen to WikiLeaks founder Julian Assange's denials that Russia was the source of hacked Democratic emails released by his group over the summer, said Kellyanne Conway, a senior advisor to President-elect Donald Trump.

"This was the information that [Assange] put forward. I think that's a bombshell," Conway told CNBC's "Squawk Box" on Tuesday, referring to excerpts from a transcript released by Fox News of Assange's interview with Sean Hannity.