Were President Joe Biden’s comments in Poland about Russian President Vladimir Putin –“For God’s sake, this man cannot remain in power” — an unforced error? Was it indeed an error? Biden’s apparently ad libbed sentence sparked launched a mini-firestorm — some of it due to it being anti-diplomatic, fears that it’ll further damage bad U.S.-Russia relations and perhaps lengthen Russia’s war against Ukraine. Some criticism also clearly political, coming from some Republicans who have no problem with Donald Trump continuing to praise Putin but see Biden’s comments as an opening to further embellish…