By Leonard Greene

He’s still a little goofy, and the doddering old man moments still make us all a little uncomfortable, but on the subject of Russia’s out-of-control aggression, President Joe Biden came off last week as a strong and capable leader.

At a news conference addressing the death of Russian opposition leader Alexei Navalny, Biden took on all comers: the bully president in Moscow, the shameless Congress in Washington and the troublemaking candidate who wants to push him out of the White House.

“Make no mistake — Putin is responsible for Navalny’s death,” Biden said Friday, mincing no words ...