Regarding the first point, this is what he said, emphasis mine:

I want to be clear on where I stand. I believe both Nicolas Maduro and Miguel Diaz-Canel are dictators. Their administrations have stifled free and fair elections, jailed political opponents, and suppressed the free and fair press. And yet, our federal government’s long history of punitive policies toward both countries, including extrajudicial killings of Venezuelans and the continuation of a decades long blockade of Cuba, have only worsened these conditions. Democratic socialism is about dignity, justice and accountability. And above all, it’s about building a democracy that works for working people, not one that preys on them."

It feels misleading to call someone’s statement denouncing the blockade as an effective endorsement of it. Did I miss him saying something else?