No. Yes, he is generally what I would consider "anti-US" but Media Bias Fact Check reports no failed fact check in last 5 years. Also, before people label him as "left-wing", he was a very strong supporter of Kyle Rittenhouse from the beginning (even supposedly good sources like The Intercept lamented the acquittal). I have linked to his article on the day of the verdict below.
https://www.moonofalabama.org/2021/11/kyle-rittenhouse-is-no...