Photo: YouTube Let’s start with a well-earned kudos for Seth Meyers and his nascent RFK Jr. impression. It’s popping up in monologues and “A Closer Look” segments throughout the week, and it gets better and better every time. Part of it is that Meyers’s natural speaking voice resides somewhat in the back of his throat, but nowhere to the extremes of RFK. But the real zazz of the impression comes from the conviction Meyers exudes as he speaks as Kennedy. So many RFK impressions rest on the