Trump calls Comey a liar yet keeps citing him as a credible source - The Washington Post: Analysis

The president's selection of what to believe and disbelieve appears to be purely self-serving, rather than evidence-based. ....
https://www.washingtonpost.com/news/the-fix/wp/2018/04/21/trump-calls-comey-a-liar-yet-keeps-citing-him-as-a-credible-source/