Lynch would be stupid to run against Gregg. That could end in a close race, I think he should just run in 2008.
Like Sununu, Gregg's approval ratings are down and it clearly would be a tight race if Governor Lynch challenged him.
Oh yes, certainly Lynch would give him one hell of a race. But that would be like Rendell running against Specter, after he had the chance to take on Santorum, or Napalitano waiting to take on McCain instead of Kyl. I like Lynch a lot, but I don't think he is right for the Senate. He's doing great things with New Hampshire.
Just like I LOVE Jodi Rell, but I don't think she is right for the Senate. Being Governor fits her.