This is a minor nitpick I suppose, but it is something that stuck out as odd for a highly successful politician to have.
- Maybe he only puts a "back home" accent on for constituents. As an extension, maybe he just puts on a New York accent to greet us - since nobody who hears him there will be telling on him, it's actually good politics to have secrets to share. Helps everybody feel they're all on the same side.
- Why did a former First Lady from Arkansas move to New York to become a senator? Because that's where the opening was. Perhaps he's a native New Yorker who relocated to Michigan to run for an open or easily winnable seat.